It's harder for me to work on a Forrest Gump kind of movie, where everything is invisible.

Because you're telling a story, and I'm sure people fifty years ago would tell the same story differently if they were telling it to you today. Because the time is different. The film is the work of today's audience.

I've done enough of this that I can tell early on if it's going in the wrong direction or not.

But you don't hire Ang Lee to do a typical children's movie. But it's such an interesting combination, whoever thought of getting Ang together with a comic book, that was just great.

What you want to do is, you want to get away from people being afraid to show their work, which is the first thing, because they don't want to be shot down.

And it's very hard to do this stuff too because there are so many effects movies being done, so many companies busy doing this work and the public just wants to see it. Good work is being done all over the world.

You know you can usually solve almost any problem, or you'll realize you can't, but usually you can solve almost any problem through some sort of trickery one way or another and get the shot to work, but you know when to give up.