People.com Halloween Party

Boo! Hollywood's Real Ghost Hunters!

Is Leighton a fraidy-cat? Does Anna believe in ghosts? Find out who jumps at things that go bump in the night!

RICKY GERVAIS

Although he stars in Ghost Town, the funnyman remains skeptical about the existence of spirits. "I don't believe they do exist," he says. "And if I saw one, I'd be sure I was either going mad or someone had put something in my drink."