Actor Rupert Everett's new role as a female headmistress was inspired by British royal Camilla, Duchess of Cornwall.
The 'My Best Friend's Wedding' star, who plays posh headmistress Camilla Fritton in forthcoming movie St Trinian, based the character on Prince Charles' wife, formerly named Camilla Parker-Bowles.
He says: "I really enjoy dressing up like this, I call it my 'Parker-Bowles' look."
The actor also stars as the headteacher's brother Barnaby in the remake of the classic 1950s slapstick movie.
The film, which follows the shenanigans of posh girls school St Trinian's, is released early next year.