For a film that's usually considered a "joke" (for lack of a better word) this commentary by Kotcheff is really quite good. Lots of things I didn't know about the production. Also, Kotcheff shares that most of the films he directed before this one were comedies.

A very good and honest commentary. Sly talks about his whole involvement with this movie and how hard it was to make and points out the things in it that do and don't work and how many different people were going to make it before he did. A good listen.