There was a fairly big difference between Detroit and Beverly Hills. I remember this. Detroit actually was a prosperous bustling city when we moved here in 1941. But the first day in Detroit, you always wore a shirt and a tie to school. And I wore a shirt and a tie to Beverly Hills High School, and a girl came up to me and said, "Where are you from?" And I said, "Detroit." And she said, "And you won't be wearing a tie tomorrow, will you?" And I said, "You're absolutely correct." So that was my first adjustment to a slightly more casual environment.

There's always something that draws you away from the original script.

When I started I had no knowledge of films whatsoever. I was an engineering major at Stanford. And I found out as a senior that they had two film critics on the Stanford Daily, and they got free passes to all the theaters in Palo Alto. So I thought, I'll do that, and I became a film critic. And then I became interested in films. But I had no time to study anything in that area because I was a senior, just finishing up as engineering.

One of the worst things you can do is have a limited budget and try to do some big looking film. That's when you end up with very bad work.

Jim Cameron is proof that if you are good, you'll get promoted.

When I started in the late 1950s, every film I made - no matter how low the budget - got a theatrical release. Today, less that 20-percent of our films get a theatrical release.

A great director, first, is highly intelligent. And he is also a dedicated and willing to work hard. Now those are easy things to identify. The third is the creativity, and that is very difficult to identify in advance. This is why so many of the directors who have started with me were my assistant - the first one was Francis Ford Coppola.