05/24/2013 10:50 EDT | Updated 05/24/2013 11:56 EDT

Jessica Chastain's Cannes 2013 Dress Channels Jessica Rabbit, Shows Underboob (PHOTOS)

Jessica Chastain's Cannes 2013 gown has hearts racing!

The stunning "Zero Dark Thirty" actress channeled another famous redhead, "Who Killed Roger Rabbit" cartoon, Jessica Rabbit.

Chastain showed off her gorgeous figure in a asymmetrical Saint Laurent gown at the amfAR Cinema Against AIDS Gala on Thursday. The deep red dress highlighted her beautiful flame-coloured locks and a sexy chest cutout gave us a peek at some underboob. (Yes, that's a term now.)

So is the 26-year-old trying to look more like her cartoon alter-ego? The in-your-face sex appeal is a different look for the normally subtle star. Jessica completely covered up in a floor-length Versace gown at the special 50th anniversary screening of "Cleopatra" only a couple days prior (and even wore a sapphire and diamond necklace that once belonged to the late Elizabeth Taylor.)

Perhaps Jessica is trying to make herself look more sexy, but as we've already seen on the Cannes 2013 red carpet, revealing dresses should come with a hazard warning.

What do you think of Jessica's look?

See more Cannes 2013 red carpet looks:

Photo gallery 2013 Cannes Film Festival Style See Gallery