There's not a lot of "let's do this just to do it" going on in Hollywood. Think about it: at it's root level, the film business is FAR more money driven than the tech community at large is (Silicon Valley can be just as nasty as Hollywood, but that's not everyone). Hollywood is structured in such a way that doesn't reward collaboration and sharing (at all) but instead rewards exclusivity and cut throat behavior at every level. There isn't exactly a large and thriving open source film making movement out there. Very few outsiders are breaking into Hollywood in the way they are in the tech world.