Do stuff that scares you on a regular basis. I think it's good for the body and for the mind.
I have to say, working with Dan Stevens in 'The Guest' and seeing his transformation was incredible. Also Kate Winslet. Off set, she's loud and sweary, but when she walks on set, she has this calmness and is so centred.
'The Shining,' 'A Nightmare on Elm Street,' 'Halloween.' Those are the greats.
With a project like 'The 5th Wave,' you do something you would never do in your normal life; I would never have had S.W.A.T. training or boot camp, and there's something really cool about learning stuff like that that's really fun about our job.