When Dupea goes to quit his oil-rigging job, the loud whirring of machines can be heard in the background. This identical sound effect was used seven years later by George Lucas, for the trash compacter scene in Star Wars: Episode IV - A New Hope.
In Carole Eastman's original script, Catherine Van Oost was supposed to be an older woman. But director Bob Rafelson transformed her into a young beauty who is Carl's protégé.
The movie's conversation "You want me to hold the chicken, huh?" - "I want you to hold it between your knees." between Robert and the waitress was voted as the #98 of "The 100 Greatest Movie Lines" by Premiere in 2007.