Amanda Bynes makes this just a fun, entertaining movie.

Rating: Null/10 (14 September 2006)

I don't know how well she would do a dramatic role, but playing a teenager as she does here and in the older movie 'What A Girl Wants', Amanda Bynes is at the very top of the young actress list. The story was 'inspired by' Shakespeare's 'Twefth Night', but Bynes is what makes a rather inconsequential movie much fun to watch. My wife and I were very entertained.
The basic story, Viola (Bynes) and her tomboy soccer friends find out that their high school is cutting its girls soccer team for lack of student response, and the coach of the boys team doesn't want to give them a chance to try out. Meanwhile Vy's twin brother Sebastian, who writes songs and plays music, gets a chance to sneak over to London for two weeks, with each divorced parent thinking he is with the other.
Vy hatches a plan, with the help of her friends she will get a short wig, some heavier eyelashes, tape her chest, deepen her voice, and go to her twin brother's new school for him, and make it on the soccer team to help beat her own school that will not let her play. The story can work because Vy could look enough like her twin brother, and no one knew him yet. But not all goes smoothly, as Vy only gets second team, and needs to improve drastically to get to play in the first game. She makes a deal with her roommate Duke (Channing Tatum), who is the star of the soccer team. If he will get her good enough to make first team, she will help get him a date with the classiest girl in school.
The fun starts right away as Vy shows up at school, and does her best to 'bond' with her new teammates, while also needing to go undetected as a girl. Lots of funny situations, and Bynes handles them perfectly.
SPOILERS FOLLOW. As Vy is about to get her chance at the big game, her brother shows up a bit early, goes to his dorm room, and the next day is hustled out in uniform and face paint. He has no clue what is going on, and besides is a pretty poor soccer player. Puzzled, the coach pulls him out. Vy tells him what happened, she gets the uniform, a student spy exposes her true identity ( she smiles at them as she pulls up her shirt to prove she is a girl, but the camera is discreet). But the coach lets her play anyway, in the last seconds with the score tied 1 to 1, she gets a deflection and kicks it past her former boyfriend to win the game. Then, she also gets her roommate, Duke, and fixes her twin brother up with the pretty girl, who had actually fallen for Vy when she thought she was Sebastian.