In an interview with Rap Radar, Eminem said this:
Sacha called me when we were in Europe and he had an idea to do something outrageous at the Movie Awards. I'm a big fan of his work, so I agreed to get involved with the gag....After the ceremony I went back to my hotel and laughed uncontrollably for about three hours. Especially after I saw it on air....I'm thrilled that we pulled this off better than we rehearsed it. It had so many people going nuts so to speak. Everyone was blowing me up about it.
Yeah, like we really needed to hear this to close the case, but whatever.
In other news, remember that time Jimmy "SuperFly" Snuka had to be carried out on a stretcher at Wrestlemania after taking a piledriver from The Undertaker? That was fake too.