I was wondering about illegal content in a totally different sense. I know from personal experience that overfitted generative models end up just memorizing the data set you trained it on. Say I overfit a model on Shakespeare, and you ask it to generate Shakespeare-like sonnets. It will do a fantastic job because it will just spit out one of his sonnets verbatim. Claiming that my network wrote it is ludicrous. The line is fuzzy where it's not overfitting and starts to generate its own content. For what you're talking about, if your model learns entirely from other people's movies, at what point is it not just a super weird codec for those people's IP?