If audiences weren't already expecting “Neighbors” to be at least the raunchiest, if not funniest, comedy of the year, a new red band trailer teasing Seth Rogen and Zac Efron's battle for neighborhood supremacy makes sure of it, TheWrap said.

In the film, a couple with a newborn baby face unexpected difficulties after they are forced to live next to a fraternity house.

“Neighbors,” directed by Nicholas Stoller (“Forgetting Sarah Marshall”), hits theaters on May 9 with Rose Byrne, Dave Franco, Christopher Mintz-Plasse, Jake Johnson and comedian Jerrod Carmichael co-starring.