I was beating Amanda Lim to death with the tire iron, I accidently hit her in the finger. It was a fake tire iron, but it was run through with metal in the middle and when she looked up after the take, she was crying and it really hurt her and so I felt pretty terrible about that, but they got back at me when I had my big fight with Casey at the end and she just beat the bejesus out of me, being the amazing stuntwoman that she is.

Zombies - obviously they're doing it in a much more expansive way on The Walking Dead - basically, what you used to do is you put a bunch of goo on an actor and have them shamble towards you, and it's a very effective creature. It always has tremendous impact, just that feeling of death coming for you; that's universally accepted.

Movies are designed to tell us stories, engage us on an emotional level and keep our attention. This can be done with a wide range of emotional triggers - Love, adrenaline, comedy. But fear is a highly potent sensation.

All sizes of film sets have the same level of excitement and friction and tension and then vast sections of boredom that define the process, so I love it all.

Acting is the most pure fun as far as jobs go, but it can be limiting in terms of freedom of expression. You are never the master of the story, just a part of it. But writing and directing give you the power of the gods.

The most challenging work is producing. The physical act of getting a production up and running is extremely taxing, and you never have any guarantee that your years of work on any given project will ever bear fruit.

When I was a kid I was really into horror films. I watched every single horror film that came out in the 80s.