>Sorry for this rant. Do any of you know movies that criticize Hollywood that genuinely portrays the life of an actor or director as terrible? Like, not an actor that is tortured and abused but end up being this totally awesome musician or actors.

In terms of musician (you sometimes say artist, sometimes actor, so using the former), Inside Llewyn Davis probably fits your bill.

In terms of films about directors, I can't think of any, but, to be fair, there aren't that many films about directors, except for semi-autobiographical works by directors who have already succeeded. (Maybe Synecdoche, New York, but I don't think that film is related to anticapitalism.)

In general, it seems like you're asking for a type of film that just isn't made that often—in which a character is beat down by life and then dies. I think, for reasons well beyond capitalism/anti-capitalism, that just isn't a film many people want to make or watch. (There are a few examples, though none that I can think of that involve actors/directors.)

There are some great anticapitlism films out there, though! I recommend Sorry to Bother You.