Leave it to Blake Lively to steal attention away the movies at Cannes 2014!

The former "Gossip Girl" actress attended the festival's opening night premiere "Grace of Monaco" on Wednesday looking fabulous in a sexy Gucci Premiere dress.

The head-turning accessory? Blake's legs, natch, which were flaunted in all their toned glory thanks to a thigh-high slit—a trend that was popular at the 2013 Cannes Film Festival.

It wasn't just the 26-year-old's legs that got us excited either; the stunning bordeaux silk-chiffon gown also featured a cool geometric neckline, a sexy open back and pleats, which probably looked amazing when the wind swept threw it.

Blake also set the bar high with her hair and makeup: a smoky eye, light pink lips and a sleek ponytail kept the look youthful and fresh.

We just wish that Blake's hunky hubby Ryan Reynolds could have joined her on the red carpet!

blake lively

More Cannes red carpet fashion:

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  • "Clouds Of Sils Maria" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: (L-R) Kristen Stewart, Juliette Binoche and Chloe Grace Moretz attend the 'Clouds Of Sils Maria' premiere during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    (From L) US actress Kristen Stewart, French director Olivier Assayas and US actress Chloe Moretz pose as they arrive for the screening of the film 'Sils Maria' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 23, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • "Clouds Of Sils Maria" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: Kristen Stewart and Juliette Binoche attend the 'Clouds Of Sils Maria' premiere during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • "Clouds Of Sils Maria" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: (L-R) Kristen Stewart, Juliette Binoche and Chloe Grace Moretz attend the 'Clouds Of Sils Maria' premiere during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    US actress Kristen Stewart (R) and French actress Juliette Binoche pose as they arrive for the screening of the film 'Sils Maria' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 23, 2014. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

  • "Clouds Of Sils Maria" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: (L-R) Kristen Stewart, director Olivier Assayas, Chloe Grace Moretz, Juliette Binoche and President of the Cannes Film Festival Gilles Jacob attend the 'Clouds Of Sils Maria' premiere during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • "Clouds Of Sils Maria" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: (L-R) Actresses Kristen Stewart, Juliette Binoche, Chloe Grace Moretz and director Olivier Assayas attend the 'Clouds Of Sils Maria' premiere during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • "Clouds Of Sils Maria" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: Actors Chloe Grace Moretz and Juliette Binoche attends the 'Clouds Of Sils Maria' photocall during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Michael Buckner/Getty Images)

  • "Clouds Of Sils Maria" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: Actress Juliette Binoche attends the 'Clouds Of Sils Maria' photocall during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • "Clouds Of Sils Maria" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: Actors Chloe Grace Moretz and Juliette Binoche attends the 'Clouds Of Sils Maria' photocall during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Michael Buckner/Getty Images)

  • "Pyo Jeok"Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 23: Actress Kim Sun Ruoungl attends the 'Pyo Jeok' Photocall during the 67th Annual Cannes Film Festival on May 23, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

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    French actress Marion Cotillard poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Swedish model and actress Victoria Silvstedt poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    French actress Catherine Deneuve poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    British Formula 1 driver Lewis Hamilton (L) and US singer Nicole Scherzinger pose as they arrive for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    British Formula 1 driver Lewis Hamilton (L) and US singer Nicole Scherzinger pose as they arrive for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    French actress Marion Cotillard poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

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    Canadian director Xavier Dolan arrives for the screening of the film 'Mommy' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 22, 2014. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

  • amfAR's 21st Cinema Against AIDS Gala, Presented By WORLDVIEW, BOLD FILMS, And BVLGARI - Red Carpet Arrivals

    CAP D'ANTIBES, FRANCE - MAY 22: Abhishek Bachchan and Aishwarya Rai attend amfAR's 21st Cinema Against AIDS Gala Presented By WORLDVIEW, BOLD FILMS, And BVLGARI at Hotel du Cap-Eden-Roc on May 22, 2014 in Cap d'Antibes, France. (Photo by Vittorio Zunino Celotto/Getty Images)

  • amfAR's 21st Cinema Against AIDS Gala, Presented By WORLDVIEW, BOLD FILMS, And BVLGARI - Red Carpet Arrivals

    CAP D'ANTIBES, FRANCE - MAY 22: Aishwarya Rai attends amfAR's 21st Cinema Against AIDS Gala Presented By WORLDVIEW, BOLD FILMS, And BVLGARI at Hotel du Cap-Eden-Roc on May 22, 2014 in Cap d'Antibes, France. (Photo by Vittorio Zunino Celotto/Getty Images)

  • amfAR's 21st Cinema Against AIDS Gala, Presented By WORLDVIEW, BOLD FILMS, And BVLGARI - Red Carpet Arrivals

    CAP D'ANTIBES, FRANCE - MAY 22: Abhishek Bachchan and Aishwarya Rai attend amfAR's 21st Cinema Against AIDS Gala Presented By WORLDVIEW, BOLD FILMS, And BVLGARI at Hotel du Cap-Eden-Roc on May 22, 2014 in Cap d'Antibes, France. (Photo by Vittorio Zunino Celotto/Getty Images)

  • amfAR's 21st Cinema Against AIDS Gala, Presented By WORLDVIEW, BOLD FILMS, And BVLGARI - Red Carpet Arrivals

    CAP D'ANTIBES, FRANCE - MAY 22: Aishwarya Rai attends amfAR's 21st Cinema Against AIDS Gala Presented By WORLDVIEW, BOLD FILMS, And BVLGARI at Hotel du Cap-Eden-Roc on May 22, 2014 in Cap d'Antibes, France. (Photo by Vittorio Zunino Celotto/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    US actress Sharon Stone speaks to the photographers as she arrives on May 22, 2014 for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    US actress Sharon Stone arrives on May 22, 2014 for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Russian model Daria Strokous poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

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    Kazakh entrepreneur Goga Ashkenazi (L) and US actress Rosario Dawson pose as they arrive for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • "Jimmy's Hall" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 22: Willem Dafoe and Giada Colagrande attends the 'Jimmy's Hall' premiere during the 67th Annual Cannes Film Festival on May 22, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    French actress Marie-Ange Casta poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Russian model Kati Nescher poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    US actor Kellan Lutz poses as he arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Italian singer and model Carla Bruni-Sarkozy poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Canadian singer Justin Bieber poses as he arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Australian model Jessica Hart poses as she arrives for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FESTIVAL

    Austrian singer Conchita Wurst (L) and the Founder of the Life Ball, Gery Keszler pose as they arrive for the amfAR 21st Annual Cinema Against AIDS during the 67th Cannes Film Festival at Hotel du Cap-Eden-Roc in Cap d'Antibes, southern France, on May 22, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • "Jimmy's Hall" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 22: Frederique Bel (3rd-R) attends the 'Jimmy's Hall' premiere during the 67th Annual Cannes Film Festival on May 22, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • "L'Homme Qu'On Aimait Trop" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Marion Cotillard attends the 'L'Homme Qu'On Aimait Trop' premiere during the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Vittorio Zunino Celotto/Getty Images)

  • "L'Homme Qu'On Aimait Trop" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Marion Cotillard attends the 'L'Homme Qu'On Aimait Trop' premiere during the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    French actress Marion Cotillard poses as she arrives for the screening of the film 'L'Homme qu'on Aimait Trop (In the Name of my Daughter)' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 21, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • Puerto Azul Experience: Arrivals - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Heidi Klum attends the Puerto Azul Experience at the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Andreas Rentz/Getty Images)

  • "Misunderstood" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 22: Actress Charlotte Gainsbourg and director Asia Argento attend the 'Misunderstood' photocall at the 67th Annual Cannes Film Festival on May 22, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • "Misunderstood" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 22: Actress Charlotte Gainsbourg and director Asia Argento attend the 'Misunderstood' photocall at the 67th Annual Cannes Film Festival on May 22, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • "Misunderstood" Photocall - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 22: Charlotte Gainsbourg attends the 'Misunderstood' photocall at the 67th Annual Cannes Film Festival on May 22, 2014 in Cannes, France. (Photo by Neilson Barnard/Getty Images)

  • "The Search" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: (L-R) Fawaz Gruosi and Cara Delevingne attend 'The Search' premiere during the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    British model and actress Cara Delevingne poses as she arrives for the screening of the film 'The Search' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 21, 2014. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    Dutch model Lara Stone poses as she arrives for the screening of the film 'The Search' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 21, 2014. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

  • FRANCE-ENTERTAINMENT-CANNES-FILM-FESTIVAL

    Brazilian model Izabel Goulart poses as she arrives for the screening of the film 'The Search' at the 67th edition of the Cannes Film Festival in Cannes, southern France, on May 21, 2014. AFP PHOTO / BERTRAND LANGLOIS (Photo credit should read BERTRAND LANGLOIS/AFP/Getty Images)

  • "The Search" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Jia Zhangke and Zhao Tao attend 'The Search' premiere during the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Ian Gavan/Getty Images)

  • Puerto Azul Experience: Arrivals - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Liu Wen attends the Puerto Azul Experience at the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Andreas Rentz/Getty Images)

  • Puerto Azul Experience: Arrivals - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: John Travolta and Kelly Preston attend the Puerto Azul Experience at the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Andreas Rentz/Getty Images)

  • Puerto Azul Experience: Arrivals - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Coco Rocha attends the Puerto Azul Experience at the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Andreas Rentz/Getty Images)

  • "The Search" Premiere - The 67th Annual Cannes Film Festival

    CANNES, FRANCE - MAY 21: Cara Delevingne attends 'The Search' premiere during the 67th Annual Cannes Film Festival on May 21, 2014 in Cannes, France. (Photo by Vittorio Zunino Celotto/Getty Images)