Name of film where a girl pretends to be a boy

[bluecrush83]

I think it's a film from the 90s.
All I remember is that a girl who recently lost her father is sent to a new school where she makes a new best friend, but to get with a group of cool boys she pretends to be a boy.
She gets found out at the school concert when she does 2 performances, one as a girl with her best friend and the other as a boy and her dress untucks from her t-shirt.

[4getmenot]

oooh its on this week let me look

[4getmenot]

she's the man?

[Postdog]

I think you'll find that is a very recent film,made in 2006

[T&S]

Is it Boys Don't Cry, starring Hilary Swank. She won an Oscar for it.

http://uk.imdb.com/title/tt0171804/