She’s The Man
Amanda Bynes plays Viola, who wants to play soccer. However, the girls team gets cut. Since her twin-brother Sebastian is off to Europe (on tour, without their divorced parents knowledge), she decides to take his place at his new school... and play soccer there. She can’t miss out on the opportunity of college scouts finding her after all.
This constant dress up, and having to learn to act like a guy, has lots of room for comedy of course.