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