''I was a little bit apprehensive [about a sequel]. I was of the mindset 'Oh, let's leave well enough alone,''' says Galifianakis. ''In the end, it seems like I was wrong. But I was scared. Not because I didn't want to work with everybody. But I thought how can you possibly do as good as [the original].''
Bradley Cooper, Ed Helms, and Zach Galifianakis monkey around for EW cameras; see more photos and get the scoop on highly anticipated comedy in Entertainment Weekly magazine cover story, on sale now