Lily's the belle of St Trinian's

Lily Cole has joined the ranks of naughty schoolgirls with a role in the new 'St. Trinian's' film.

The 18-year-old model, who's due to take a place at Cambridge University soon, has added acting to her growing list of credentials.

Lily Cole takes a break from the catwalk to star as a schoolgirl in the new comedy, 'St. Trinian's'

Cole, along with dozens of other girls, were out-and-about in London's West End filming scenes earlier today.

The movie is set in a school for 'young ladies' where an anarchic doctrine of free expression runs riot.

St Trinian's is a school for 'young ladies' with its anarchic doctrine of free expression

The girls misbehaving in Trafalgar Square

School's out

Also joining the starry cast are Rupert Everett, Emily Watson, Russell Brand, Stephen Fry and Amy Winehouse.

The Brit-winning singer has admitted to being a disruptive pupil and was expelled from stage school at the age of 16.

Actor Rupert Everett will be putting young school girls in their place

While Everett will undoubtedly be hamming it up as Miss Tritton, the straight guy will be played by that other British gent, Colin Firth (Hugh Grant is the third member of this well-loved triumvirate of upper class charmers).

The dashing Colin Firth plays Geoffrey Thwaites

It's been 23 years since Firth made his first big screen debut, incidentally opposite Everett, in 'Another Country'.

Since then, the two have appeared in several other films together including the Oscar-winning 'Shakespeare in Love'.