I don't know what has happened to movies, but lately every movie is at least 20 minutes too long. It used to be that if you were three hours long it was because it was epic - a movie about Gandhi; something with very important subject matters.

I love really exploring... you know, a cop drama for example is a great way to explore class in this country and explore, you know, really, identity in the country and who we are in a way that is extremely exciting, but it's also real, you know, it's also real people and real drama. The same with the military. I mean, a good science fiction story is also great.

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.

And the best films feel like a fist punching you in the solar plexus and all elements of the filmmaking process - the acting, the design, the cinematography, the music, is all working to one end.

It was fantastic to be on the set again with Denzel (Washington) and Antoine (Fuqua) and then to have the situation be so different. We weren't making a sequel to Training Day. We were in the middle of the desert riding around on some horses.

At every turn, when humanity is asked the question, 'Do you want temporary economic gain or long-term environmental loss, which one do you prefer,' we invariably choose the money.

I did this movie, Predestination, and it's one of my favorite movies I've ever made, because sci-fi really lets you talk about ideas in a way that's not pretentious.