Yeah, I know - that was kinda the joke since they tried and failed so horribly with that.
I said it before somewhere, but I think they use the other stars to promote it, keep saying that Miller is a troubled person who they hope gets the help they need and also keep reminding audiences of all the other people whose hard work on the film we can still appreciate. No idea if it's possible to edit down his role and play up the others, but ... I guess we'll see...