Hang on to your hockey sticks. The most badly behaved schoolgirls in the country are heading your way!
A new film called St Trinian's was launched at the glitzy Cannes Film Festival in France.
The two week festival often welcomes some of the biggest film stars in the world. But today it was the turn of a bunch of misbehaving school kids.
St Trinian's is a boarding school, and in the film the girls have to work together to try and save it from disaster. And that's when their ability for breaking rules comes in really handy.
Talulah Riley who plays new girl Annabelle
"It's about using our naughtiness in a good way," actress Gemma Arterton, who plays Head Girl Kelly, told CBBC Newsround. "We have to save the school. We have to come up with really inventive ideas."
So how badly behaved are the girls?
"They'll do anything and everything," says Talulah Riley who plays new girl Annabelle at the school.
She says Annabelle is "terrified of their naughtiness".
'Creative not bad'
But Gemma insists that they girls aren't that bad saying: "They're not horrible or vicious. They want to be able to do their own thing and be creative. I don't think they want to hurt anyone."
The film also stars supermodel Lily Cole as school swot Polly and OC star Mischa Barton.
Of course St Trinian's isn't the only boarding school film to hit the big screen. But one of the men behind the movie, Barnaby Thompson, says it's the opposite of Harry Potter.
He said "That's the earnest version of British boarding schools. This is the comedy version."
Filming on the movie isn't finished yet. But it's thought it will probably be in cinemas later this year on 21 December 2007.