Getty Tina Fey is shuttering any talks of more Mean Girls. The 55-year-old comedian and writer penned both movies and the Tony-nominated Broadway musical adaptation, but she's stopping there. While speaking at the HISTORYTalks event in Philadelphia on April 18th, Tina talked about the movies and the stage musical. "We always, in every iteration, tried to honor the source material, which is like a sociology book about how to help girls through relational aggression and behaviors like that," she said, via People. "It's like, yes, everyone loves the Plastics. They have the best outfits.