Can you imagine Smallville without Lex Luthor?

That's the possibility that arises after you watch this video (also embedded after the jump) of star Michael Rosenbaum at YoungHollywood.com. Most of the video is just Rosenbaum explaining what he's doing at the Sundance Film Festival, what he gets in free stuff for being on a TV show, who his mom looks like, and how to fake a smile for all the cameras that are always shoved in his face. But in the last few seconds of the clip, Rosenbaum tells fans to watch the show "for only a couple more months, and then I'm done."