"Every single day was more or less a party. You went into this kind of dream state: You show up, it's dark, and there's a raging party. Drive home, and the sun's up, go to sleep and then get back to set. Glow lights, girls in bikinis, electronic dance music blasting in between takes, people jumping around. It was pretty cool, but it was a lot." Zac Efron on filming new family vs. college fraternity movie Neighbors.