<P> It was announced at the 2008 Cannes Film Festival that St Trinian's 2: The Legend of Fritton's Gold was to be released on 18 December 2009 . </P> <P> It opened at #2 in the United Kingdom, just behind James Cameron's 3D sci fi epic Avatar, with debut week end box office figures of £ 1,586,832 . As of 10 February 2010, the film has grossed a total of £ 7,019,714 in the United Kingdom, considerably lower than the first instalment's £ 12,280,529 . It still turned out to be the fourth biggest hit of the Christmas season of 2009, beaten only by Alvin and the Chipmunks: The Squeakquel, Guy Ritchie's Sherlock Holmes, and Avatar . </P> <P> The film received overwhelmingly negative reviews, holding a 10%' rotten' rating on Rotten Tomatoes . </P> <P> The region 2 DVD of the film was released on 24 May 2010 . A region 1 DVD release occurred on 23 March 2011 . </P>

Who plays the headmistress in st trinians 2