(Getty Images)

Fantasy casting the first

-directed

movie has turned into a favorite pasttime of geeky movie writers since Disney made its big announcement back in January. But it sounds like we can rule out Simon Pegg 's involvement based on what he told us in an exclusive interview Tuesday morning ahead of his new movie,

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Star WarsDespite Pegg's well-documented affinity for the universe , and his involvement in Abrams' Star Trek franchise, he's worried it would break the fourth wall if he showed up in Episode VII."I think I'd probably spoil it," he said. "Stunt casting this movie would be a mistake I think, and I think knowing cameos would distract from the big picture. And I would end up being one of those people — knowing my love of those films, and knowing me as an actor, and I'm in Star Trek anyway, and I have a great allegiance to that. I really want to see JJ's Star Wars, and I'd hate to sort of walk on screen and you think 'oh balls, it's not real.'"So he must not be a Mace Windu fan? World's End director Edgar Wright isn't so sure a Pegg cameo is a terrible idea, though."If you were in it though, I'd like you to play Storm Trooper Who Walks Into a Door ," Wright said, "because he's the best character!"Pegg added: "Oh yeah! He's brilliant."So, some hope for a cameo?