Zac and Seth Rogen play dueling neighbors in the comedy.
The first time Zac met Rogen, about six years ago, he said, "Hey, Seth, my name's Zac. I'm an actor, and I just wanted to tell you that I really love your work. And thank you for everything you've done." Seth answered, "Aw, man, I just wanted to hate you." (Universal Pictures)
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