Cameron Diaz on set in searing smoking London for Gambit: Cameron Diaz looks slightly worse for wear sans make up and greasy hair whilst on set filming Gambit in London this week. The Green Hornet star was prepared for the London heat with two bottles of water and dressed in white.

The 38 year old is filming crime caper Gambit here in which she stars with The King's Speech star Colin Firth, along with Alan Rickman and Tom Courteney. It's a remake of the 1966 Michael Caine and Shirley McLaine movie of the same name, which was nominated for three Oscars.

Shooting will begin in May in London on the film, with The Last Station's Michael Hoffman directing from a script written by Joel and Ethan Coen, and Colin Firth described it to the BBC as; ''It's a lovely, witty Coen brothers script. I'm told it's a vast departure from the other film.''

Gambit tells the story of a man called Harry Deane, played by Firth, who plans on stealing a painting from one of the world's richest men,but needs a beautiful woman, cue Cameron as PJ Puznowski, the Texan rodeo worker roped into the scheme to play his Gambit. Until Gambit is released sometime next year, you can see Cameron Diaz in Bad Teacher starring Justin Timberlake out on the 24th of June 2011.