Lip Ton was originally scheduled to be the actor of George Hansen.
The film customized four police motorcycles. One was destroyed during filming, and the other three cars were stolen before the filming was completed.
In the Louisiana coffee shop, the countryman who mocked the boys and the two people who hitchhiked at the end of the movie are local residents hired by the producer. In the coffee shop scene, the producer wanted to find some actors to audition in the local theater. Later, Dennis Hopper saw Testa and Lafonte, observed that the two people were talking witty words to each other, and immediately changed his mind and decided to use them.
During production, Dennis Hopper had to face many difficult problems. He himself was in a state of drug addiction and paranoia, yelling at everyone. Some staff secretly recorded his swearing at them, and then sent them to the production company in Los Angeles to explain why so many staff quit.
Peter Fonda is an experienced motorcycle rider, but Dennis Hopper's driving skills are not so good, so his motorcycle style in the film is relatively conservative.
In front of the camera, Peter Fonda, Dennis Hopper and Jack Nicholson are indeed smoking marijuana.
The shooting of the final bonfire scene is far from the original script. It was filmed after both motorcycles were stolen.
Some lenses were shot with 16mm rather than 35mm film. These became the film samples for post-production to begin a year later.
The Captain America jacket worn by the protagonist of the film was designed by Peter Fonda and produced by "two little old ladies" in Los Angeles. After the film was finalized, it was sold at a charity event.
Stephen Stiles wrote the song "Finding the Value of Freedom" at the request of Dennis Hopper, which was used in the final scene of the movie, but Hopper didn't use it.
A week before the filming started, Peter Fonda wore that Captain America jacket every day and rode around Los Angeles on a motorcycle. He just wanted to make his clothes tattered, and he was used to riding a bike in a radical alternative way. The pattern of the American flag on the back of the jacket and the American flag on the fuel tank attracted the police several times to try to drag him down.
Dennis Hopper has the original edited version, which lasts approximately three hours. After watching the movie with some other key members of the producer, they cut the movie to the length of the current version.
This film is the first to make extensive use of already released musical works in a film, rather than music created specifically for the film
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