In the book, Hunter S. Thompson listens to "Sympathy For The Devil" by The Rolling Stones. The rights to play it in the film were too expensive for the production's budget.
According to Johnny Depp, the gorilla statue outside the Bazooko Circus now "lives" in his front yard.
Hunter S. Thompson shaved Johnny Depp's head. They were in Thompson's kitchen, Depp refused to look in a mirror, and Thompson wore a miner's hard hat.
Terry Gilliam took over as director after Alex Cox left the picture due to creative differences. Gilliam re-wrote the entire screenplay in a few days to fit his unique creative vision and style, while staying true to Hunter S. Thompson's writings.
Hunter S. Thompson strongly objected to the scene where Raoul Duke tosses change at the dwarf waiter, finding it distasteful and inaccurate to the character.
Hunter S. Thompson: at the Jefferson Airplane show. When Johnny Depp, as Thompson, sees the real Thompson, Depp's narration says "There I was . . . mother of God, there I am!"
Terry Gilliam: Wearing a cap and holding a microphone protruding from a large tape recorder box in the motorcycle race, as the bikers take off.