Every day was a party on the set of Neighbors, and often quite literally. Director Nicholas Stoller staged several full-scale frat bashes for the movie — which finds new parents Seth Rogen and Rose Byrne warring with the rowdy, Zac Efron–led frat house next door — and those shindigs inspired plenty of weird stories, as any good party ought to. Click through as Stoller takes us through eight photos snapped behind the scenes of Neighbors and dishes on what the camera won’t show you.
Neighbors Photo: Glen Wilson/? Universal Pictures