Groupies Laurie Smith and Gayle Sterling are riding with John Leslie in the back seat. Laurie is by the door and Gayle is sitting in the middle position. When the scene switches from the actual street locale to a sound stage, Gayle is now by the door and Laurie is sitting in the middle position on the backseat.
Actress Sharon Mitchell's character is listed in the film's credits as "Opan Kincaid" (spelled that way). In reality, her character is "Opal Kincaid".