01/22/2014 10:50 EST | Updated 01/25/2014 04:01 EST

Rooney Mara's Boxy Sweater Makes Us Feel Warm Inside (PHOTOS)

C Flanigan via Getty Images
PARK CITY, UT - JANUARY 21: Actress Rooney Mara (wearing engagement ring announcing her engagement to Charlie McDowell) attends 'The One I Love' premiere at the MARC Theatre on January 21, 2014 in Park City, Utah. (Photo by C Flanigan/FilmMagic)

Rooney Mara must be a Canadian at heart because the actress has perfected how to dress fashionably when it's cold outside.

The "Her" star posed on the red carpet at the 2014 Sundance Film Festival premiere of "The One I Love" on Tuesday wearing a boxy, cropped sweater (in her favourite hue: black) that featured embellished quilted sleeves and a faux v-neck.

Sporting natural makeup, "The Girl With the Dragon Tattoo" star paired the sweater with matching high-waisted trousers and leather ankle boots.

Looking as if she just fell out of bed (in the chicest way possible), the 28-year-old pulled her wavy brunette hair up and left strands down to frame her pretty face.

Although the two-time Vogue cover girl doesn't star in the film, the actress was at the premiere to support her boyfriend, Charlie McDowell, who directed it.

When not looking like the most glamorous goth at Sundance, the face of Calvin Klein Downtown perfume was also being photobombed by none other than Oscar-winner Anne Hathaway, who went androgynous chic at her own Sundance premiere a few days ago.

Would you wear Rooney's sweater?

rooney mara

rooney mara

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