I'm the type of actor that believes the director has to be in charge. I've been on sets where the actor's ego was the most important thing, and with a director that messes it up. But I don't like a dictator, I want it to be collaborative - the best idea wins. If I feel respected, and I'm going to give that back. If a director wants to try something, cool, I'll give it back. I also feel like they cast me for a reason, so I'm going to make my mark on it... let me do my thing.

I was in good shape from Divergent. Damien Chazelle, the director of Whiplash told me, 'Stop Working Out! Don't go outside!' He wanted me pale and doughy. This is the first movie where I shut myself off from the world. It was, by far, the hardest thing I've ever done.

The makers of '21 and Over' have been screening it, and I'm getting a lot of comparisons to a young Vince Vaughn.

I start a boxing movie and that's kind of something I've been able to get to the gym for. It's great anytime you can parallel a skill that your character has. I just think it makes it even more rewarding.

I just really enjoyed all that kind of responsibility, I loved the fact that many people cared. I was doing 4 hours of boxing, 2 hours of weights, an hours of accent and dialect training, I just enjoyed having to do all that for this character [ Vinnie Paz in Bleed for This].

At the end of the day, it's hard to keep relationships with people. I've got my family, my best friends and if a girl's gonna be a part of that then it's got to be good. If not, I'm out.

Just go to a bar, watch football - that's fun to me because I've not gotten to see anything because I've been travelling so much. Playing some shuffleboard and some pool and darts. I like kind of dive-y bars.