This film fell weeks behind schedule due to bad weather. When they could not film, director Sam Peckinpah and his cast and crew would drink. When the film did wrap production, the bar bill came to over $70,000.
Several crew members were fired from this film. It was the job of one crew member to have bus tickets back to Los Angeles for a fired crew member. If someone lost their job, Sam Peckinpah would ask, "Do you have a bus ticket for them?"
The automobile featured in the film is the "Leslie Special," from the 1965 Warner Bros. film The Great Race. The car was repainted from white to green, and the red upholstery replaced with white, but the "Leslie Special" name can still be seen on the grill in shots of the car from the front.