And the joy of my job - and it's really true - is that it's constantly evolving and changing.

When you start becoming really successful, the demons start to tempt you - the demons of vanity and self importance, drug abuse, the feelings of fraudulence. But, it's also a thrill. That's what I found weird.

I'm magically delicious.

Its difficult to do a genre film well, and it doesnt matter if youre talking vampire movies or Dawn of the Dead or The Thing or Escape From New York. Those kind of movies, they understand what the old-school B-movie is supposed to be, they get the throwback of it.

It's interesting to work with Emma [Watson] so quickly after Harry Potter. When we shot this movie, it wasn't that long after Harry Potter was finished, and it's knowing that's a big transition in her life. She's a very talented young woman.

People are conditioned to just you know, like, you know we're like little birdies going to the bird feeder you know, or the little cows going to the salt lick. We just like what we've seen before.

My process differs... my process for a Richard Linklater film is very different than a process for Training Day.