If fans had wondered when — as all high - profile SNL cast members eventually do — Fey would set her sights on feature films, their curiosity would soon be answered when it was announced that Fey would be writing and appearing in Mean
Girls (2004), an adaptation of author Rosalind Wiseman's
popular book Queen Bees and Wannabes: Helping Your Daughter Survive
Cliques, Boyfriends and Other Realities of Adolescence.