LATEST: British beauty Keira Knightley was reportedly left furious at the London premiere of her new film Pride And Prejudice on Monday night (05SEP05), when her ex-boyfriend turned up unannounced at the after-party.

Knightley split from Irish model Jamie Dornan last month (AUG05) and is now dating BODYROCKERS DJ KAZ JAMES, who was present at the Leicester Square premiere of the movie.

But James returned to the couple's hotel after the premiere screening, just moments before Dornan arrived at the Whitehall Place bash in the British capital.

A insider tells British newspaper The Sun, "Keira had a busy night making sure her tangled romance wasn't the centre of attention.

"Kaz was messed about all day. Keira sent him tickets for the film then got cold feet about him going to the party afterwards.

"He left the screening and headed straight to her hotel. It was just as well because Jamie was kicking about too. He is still close to Keira and a confrontation between him and Kaz would have been a huge embarrassment."