Zac Efron And Seth Rogen Duke It Out In NSFW 'Neighbors' Trailer: Watch Now

Get an exclusive look at the upcoming comedy from the director of 'Forgetting Sarah Marshall.'

Zac Efron and Seth Rogen seem like they would make good next-door neighbors, right? Efron might get a little loud with his singing, and there might be a funny smell occasionally coming from Rogen's house, but they're nice enough guys to share a fence with.

You'd think that might be the case, but in their new comedy called — of course — "Neighbors," the two do not get along in the way that Mr. Rogers sang about, as you can see in the exclusive restricted trailer we just debuted.

"Neighbors" tells the story of Mac Radner (Rogen) and his wife, Kelly (Rose Byrne), a married couple that are in need of some next-door friends, but when a fraternity moves one house down from them, their attempts to reach out the house leader (Efron) doesn't go over so well. The married couple and their new baby don't mix well with explosive ragers, horny college kids and the "balloons" that are left on their lawn the next morning.

What results is a dangerous game of back and forth between the Radners and the fraternity brothers of Delta Psi. The frat throws a big party in their backyard complete with fireworks, so the Randers cut off their power. The Radners cut the power, so Delta Psi installs airbags into Mac's chair at this office. Needless to say, things get out of hand.

"Neighbors" comes from director Nicholas Stoller, who — when he's not writing movies for Kermit, Miss Piggy, and the Muppets — has made some seriously funny movies, like "Forgetting Sarah Marshall" and "The Five-Year Engagement."

"Neighbors" opens in theaters on May 9, 2014.