The film's writer, Nancy Dowd, was unsatisfied with the editing and final cut of the film so changed her name to Rob Morton on the credits. The reality was Dowd's involvement with the film ended early in the production process when she was groped onset by a camera operator.
According to writer/"Beat The Geeks" Movie Geek (and fan of the film) Marc Edward Heuck, writer Nancy Down disowned the film (opting for the Rob Morton alias) due in part to her dissatisfaction over the more upbeat "music video" ending.
In a May 2019 interview with Christine Smallwood in the New York Times Magazine, Laura Dern said that she was never interested in abusing drugs because Paul Cook of the Sex Pistols "pulled her aside" on the set of this movie and "scared her straight" when she was 13. She recalled to Smallwood, "I was saying to my mom, 'Who knew that the best thing to do would be to send your daughter to do a movie with the Sex Pistols for five months?'"
The trivia item below may give away important plot points.
The "music video" ending - of the film of the Stains performing together in an MTV-type montage - was actually shot some 2 years after primary photography wrapped (when Diane Lane was 17, which explains why she had matured so noticeably). At the time, MTV was only a few months old, and (as noted by she and Laura Dern in their commentary on the film) the actresses couldn't help but feel some excitement over seeing that their film had in some ways predicted the rise of the sort of female performers, such as the Go-Go's, Madonna, and Deborah Harry, that they'd been seeing on MTV.