Eminem stormed out of the MTV Movie Awards last night (31.05.09) after Sacha Baron Cohen thrust his bare butt in his face.

The ‘We Made You’ rapper was seen mouthing “are you f***ing serious” when Sacha’s alter-ego Bruno, a gay Austrian fashion reporter, descended from the roof of the Gibson Amphitheatre - in Universal City, California - wearing wings, knee high boots and a jockstrap.

Bruno then wrapped his legs around Eminem’s head, with his buttocks fully exposed and asked: “Is the real Slim Shady about to stand up?”

The ‘Stan’ hitmaker appeared to be visibly upset by the encounter and after members of his entourage pulled Bruno off him, he left his seat and exited the building.

Before the incident, Eminem had wowed the audience by performing tracks ‘We Made You’ and ‘Crack A Bottle’ from his new album ‘Relapse’.

The big winner of the night was teen vampire movie ‘Twilight’, which picked up five awards including Best Movie.

The film’s main star Robert Pattinson was handed the Best Breakthrough Performance by a Male prize, while his co-star Kristen Stewart won Best Female Performance.

The pair also re-enacted the kiss between their characters Edward Cullen and Bella Swan while accepting the accolade for Best Kiss.

Best Breakthrough Performance by a Female was given to Ashley Tisdale for her role in ‘High School Musical 3: Senior Year’, while her co-star Zac Efron won Best Male Performance.

Jim Carey was honoured with the Best Comedic Performance gong for his turn in ‘Yes Man’ and the late Heath Ledger was named Best Villain for his portrayal of The Joker in Batman blockbuster ‘The Dark Knight’.

Ben Stiller was given with the MTV Generation Award, which was presented to him by Zac, Kiefer Sutherland and Triumph the Insult Dog.