the relevant quote:
My all-time favorite film of yours is Predator, and Shane Black is now rebooting the franchise with The Predator. Are you involved with it in any way?
They asked me, and I read it, and I didn't like it — whatever they offered. So I'm not going to do that, no. Except if there's a chance that they rewrite it, or make it a more significant role. But the way it is now, no, I won't do that.