As for whether the teen star believes in space invaders, Lucas has yet to be convinced that they exist. "I think it's fun to scare myself into it," he says. "Just like it's fun to go ghost hunting, but I don't believe in ghosts either. I just want an experience to happen and nothing ever happens. I've never had a first-hand account with aliens, so no, I don't believe in them."

Read more from our interview with Lucas, and find out what his Battle: Los Angeles co-star Michelle Rodriguez told him about working on Avatar here. Battle: Los Angeles is slated to hit theaters on February 18, 2011.
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