Penciler George Pérez, recalled that Marvel had

"...nearly zero cooperation from the Robert Stigwood company [which produced the film] and we didn't realize that the [movie] script was still in so much flux that things we were putting in the comic were not going to appear in the movie and things we didn't know about were going to be added to the movie. The plot was so convoluted and cheesy — even on the printed page — and after a while we realized it was not really going anywhere. They said they were going to have all these superstars appear at the end of the film and, of course, in the end they couldn't get them — not that we could have used them anyway, because we didn't have the licenses to use their likenesses. Also, I was paired with a very incompatible inker because the book was running so late. I was doing a terrible job on it, Jim Mooney was a terrible fit for me — though he did the best he could — [and] it was just one disaster after another. It was one of the nadirs of my career. I was so grateful that the book never got an American release. I've yet to see a copy of Sgt. Pepper."^*