Kathryn Hahn Wears Ninja Turtle Couture at the 'This Is Where I Leave You' Premiere

Tina Fey, Jane Fonda, Jason Bateman, and the rest of the all-star cast of the dysfunctional family comedy 'This Is Where I Leave You' descended on the TCL Chinese Theatre in Los Angeles on Monday night for the red carpet premiere. But it was costar Kathryn Hahn who swiped the spotlight and glittered green in her deceptively simple sleeveless black minidress with shimmering appliqués that, depending on your point-of-view, resembled eye-popping emeralds — or a certain group of reptilian superheroes. "My son thought I looked like a Teenage Mutant Ninja Turtle," Hahn told 'Entertainment Tonight.' "A chic one." Click through to see what the rest of the cast wore.