otaku studies, science, technology, and (sub)culture
Yes! I noticed this. Today (in 2009) I was doing a search on copycat DVD box art. Go into a Blockbuster, and take a look at the new section. Lots of the straight-to-DVD releases that you haven't heard of, have covers that riff on more successful movies of the same genre. For example, Emilio Estevez was in some movie that had a cover picture just like Swingers and Go mashed together.