Roger talks about how he wanted it to be a more serious film, but Paul Bartel wanted it to more humorous.

They point out crew members who had cameos, how Stallone didn't want to get naked for the massage scene (Mary didn't mind), how the cars were actually Volkswagons with the bodies taken off and replaced with their own designs, how this movie was done with a low budget and how it was shot in 3 weeks, Mary couldn't drive at the time so a stunt woman did her driving, working with David Carridine and how the footage of cars racing was speed up because the cars moved very slow.

A great commentary that'll please fans of the film.