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Last night, 'Social Network' star Jesse Eisenberg kicked off the Saturday Night Live monologue (video after the break). A sweatshirted Andy Samberg joined the Academy Award nominee onstage to compare Zuckerberg acting techniques -- "I speak in short clipped sentences, and keep my head very still" -- while the show cut to Lorne Michaels and Mark Zuckerberg himself offstage. Sure enough, the real Mark moved in from stage right for an awkward chat on the film and a quick introduction to the rest of the show. Lorne may be right: Zuck was probably better off backstage.