UPDATE: You can read Eminem’s reaction to the planned stunt here.

What’s the best way to get on Eminem’s bad side? Well - if you’re Bruno, just get your naked rear in his face.

During tonight’s broadcast of the 2009 MTV Movie Awards, actor Sacha Baron Cohen (promoting his movie about an Austrian fashionista) flew in from the rafters on on a high note…then descended toward the rapper’s low note. Needless to say, this prompted the musician and his crew to leave in disgust.

Although most people weren’t sure whether Eminem was in on the stunt, Ryan Seacrest claimed via Twitter that the departure was no act:  “If u saw the fight at mtv movie awards betwen eminem and ‘bruno’ I am told it was real and em’s crew left the show.”

I expect we’ll be hearing a lot more about this soon…

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