Maggie Gyllenhaal: 'Frank' Sundance Premiere!

Maggie Gyllenhaal keeps it sexy sheer while attending the premiere of her latest film Frank held at Eccles Center Theatre during the 2014 Sundance Film Festival on Friday (January 17) in Park City, Ut.

The 36-year-old actress was joined by her co-stars Carla Azar, Scoot McNairy, Hayley Derryberry, Francois Civil, and Lenny Abrahamson.

PHOTOS: Check out the latest pics of Maggie Gyllenhaal

Frank is a “comedy about a young wannabe musician, Jon (Domhnall Gleeson), who discovers he’s bitten off more than he can chew when he joins an eccentric pop band led by the mysterious and enigmatic Frank (Michael Fassbender).”

15+ pictures inside of Maggie Gyllenhaal attending the Frank premiere…