 however, neither compound is a hallucinogenic drug as  portrayed in the book/film. After showing a rough cut of the film to  a test audience, Gilliam was approached by a group of young men, one  of which complimented him on the film in general, but said that his  favorite scene was the andrenichrome scene. He said that he had used  the drug and that Gilliam had captured the effects perfectly.  Gilliam didnt have the heart to tell the kid that it was made up,  and went along with his story.