I'm used to really struggling and facing a hard time to get things going, until I'm comfortable at all with them.

I remember, when I was an up-and-coming comic, how annoyed I would be when the famous guys would show up and just take everyone's spots.

The scene with Danny [McBride] and the cake and all of that [in the Pineapple Express], most of that is improvised, I would say. But you would never know, to me anyway, and that's what is always amazing.

I was, like, a brown belt, which is pretty good. I entered a tournament once, and I punched the guy in the throat and got disqualified. I realized - I don't know if you're familiar with "Karate Kid," but the bad guys in that are called Cobra Kai, and they're, like, the evil karate guys. And then when I went to the tournament, I realized that's what we were; we were like the Cobra Kai of the Jewish karate community.

Really, if I'm honest, sci-fi is where my sensibility instinctively goes - I'm a big comic-book fan.

Those are the movies that we [with Evan Goldberg] always wanted to make. Pulp Fiction, Reservoir Dogs, the kind of movies where violence and comedy and characters kind of work together really well.

For me to act natural and real but also try to be funny while doing that is hard.