I'm pretty sure no one's reading action scripts saying, 'This has got to be Ed Helms.'

We did some camera tests blacking it out, we made a prosthetic with a gap in it, but that made me look like a donkey, so I vetoed that right away. And then I just finally called my dentist and said, 'You know, I've had this implant for 20 years. What's it involve in taking it out?' And he said, 'It's actually not that big a deal. We can do that.' So we took it out and I was toothless for three months, for the run of the movie [ The Hangover] .I take my job very seriously.

One of the biggest breaks we had actually, one of the biggest, the hardest I laughed on the movie [The Hangover] was the baby was just doing ridiculous things and making hilarious faces. But I'm sitting there and I'm supposed to be having this exchange with Zach [ Galifianakis] and the baby is like staring at me with these huge eyes and acting, and just making the most cerebral faces, and I could not keep it together.

As an editor, you're constantly dealing with the best way to convey an exchange between two people. So when I'm shooting that, I'm just aware in the back of my head what an editor might want. And also, the problems editors run into when trying to edit performances - it helps me head that off at the pass a little.

I lived in New York for 10 years, I loved it, I never second-guessed it. There were definitely times when I thought, "I will never leave this place." And I kind of got into that center-of-the-universe mindset.

[Mike Tyson] was fantastic. Well, here's the cool thing about Tyson. It turns out he's a huge fan of Old School, which was one of Todd Phillips' earlier movies. So he got to the set and he already liked Todd and he trusted Todd.

Don't be afraid of fear. Because it sharpens you, it challenges you, it makes you stronger; and when you run away from fear, you also run away from the opportunity to be your best possible self.