One of the things that's driving films in a particular direction is that the after market value of them is dropping really fast and in many segments of it, not just DVDs. Pay television is dropping.

We've never pulled from the toy line. We've always pulled from the mythology. What's great is there's so much mythology, so there's always stuff to pull from that. It never lines up perfectly for a movie; it's just like adapting a book or anything else, you know? But you come up with things to create, you come up with different ideas, but fundamentally the ideas always start from the mythology.

If a character dies, you should feel that. If a character accomplishes something, you should feel that. That's where you try to find that balance. It's impossible to articulate, as you go through it. You just have to recognize it.

I mean, I'm not a contrarian.

What I can't figure out is why we're not making more R-rated movies, actually.

I always consult five to ten people who are hardcore fans, to see how far I can push a role. When they go, "Wait a second, you can't do that! That's a sin!," you go, "Okay, fine, we're not going to do that. We tried too far."

I think what's fun of making a Transformers movie is that it gets to be all of the above. I think, thematically, this movie is ... because of the third movie, you can ask questions in this movie you couldn't ask in the previous films. Like I was referring to the fact that they were abandoned by humans in the previous film; their attitude is different, so we've been able to tackle different themes.