Seth Rogen and Zac Efron may play rivals in this month's "Neighbors," but the stars were right at home, joking together in our latest Unscripted.Rogen and Efron answered a few fan questions -- and some of their own -- digging deep about their first acting gigs, tween slumber parties, and Efron's most memorable prank. But it's not until Rogen recalls the time Louis C.K. dissed Rogen and Jonah Hill, and Efron reveals the Swedish Fish-fueled secret to a camera-ready physique, though, that this Unscripted becomes truly memorable.
"Neighbors" hits theaters Friday, May 9.
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