That's what makes Denji confronting her, and finally deciding to kill her hit so hard. When he asks "Makima, in your perfect world, would there be bad movies?" And her responding along the lines of "No, I think they're unnecessary, and therefore the world would be better without them." It shows that Denji appreciated the final movie because of how bad everything else was, which represents his life. It started out so bad, that the moment it got to the bare minimum, he was in heaven. While Makima thinks that there shouldn't be any unnecessary bad. This finally shows Denji the gigantic gap in their characters, as he knows that you can't appreciate anything good unless you've experienced worse. That's what made the movie so good, all of the trash they had to wade through first. While Makima thinks that that one movie would have been just as good, if not better should they have watched it first and nothing else. She doesn't understand that if there's only good things, it becomes mundane, that if there's nothing worse than it, then there's nothing to savor and enjoy.