In choosing any role, I ask the same questions: what kind of part is it? is the role challenging? does the director have a vision? is the story moving? etc.

I like both music and acting, and they both have a lot in common - timing, immediacy, stuff like that. But acting is more regimented. You wait around for hours, you don't get to write the script, you get hired. Music represents me better. I'm not acting; I'm just expressing myself.

I've built an 8-track studio in my house that's virtually identical to what they used at Abbey Road, and I also own the 16-track set-up that Led Zeppelin used to record 'Houses of the Holy.' I'm interested in producing, but I'm mostly recording my own stuff.

This was basically the first time I got to act in action scenes, with things blowing up all around me. It sounds corny, but I think every actor would like to - at least once in his or her career - play the person who saves the entire world.

One day when I was like 9, I heard the Beatles on the radio, and I asked my dad who they were. He told me they were the best band in the world, and I became obsessed. He started giving me their albums in sequential order, and I listened to them - and only them - until I was probably in high school.

It's cool to play a sinister bad guy who also has a human side.

I also couldn't pass up the opportunity to be in the same movie as Jack Nicholson and Glenn Close.