Why DiCaprio acts like asshole to James Cameron?

Wouldn't surprise me at all, seems like someone who's never been checked, and his ego has probably just continued to bloat out of control. He should have been bowing at Cameron's feet - dude is a true legend, something Leo will never be.

An actor, who's a pompous ass?!! The world's has never heard of such a thing till today. At this rate, we'll soon be receiving word of a politician who's been diagnosed as a malignant narcissist

As if James Cameron isn't known for being a huge asshole to people who are below him on the totem pole? At least DiCaprio was punching up

I know some stars find it beneath them to read for an audition. They can say "haven't you seen my work?"

But it's important to work out chemistry between actors.

I won't hold anything DiCaprio did at 19 against him. It's no secret he had an ego as a young actor, especially due to his enormous fame, but from what I can tell, very few people still have beef with him today and it's not really anything to do with him personally. For example, Jack Black hates the fact he's always up for an Oscar despite, to paraphrase, his subpar performances, which means someone better is out of the running. Nothing to do with DiCaprio as a person.

Um, to be fair, James Cameron [on his off days] is a world-class asshole too.

I think he didn’t attend because HE wasn’t nominated

Oh, I think both are assholes with massive egos, but both have the sense to keep the assholery from completely derailing their careers. DiCaprio works with directors he likes, at this point he knows that on a Scorcese set everything will be go the way he wants it to go, so he won't have to be an asshole there. Well not much. And Cameron hires actors and crew who can put up with him being a difficult perfectionist, which is presumably why DiCaprio hasn't come back.

And neither of their careers has been derailed by scandal, even though they are, as I said, assholes with massive egos! I mean Cameron has been divorced six or seven times, with no real scandal - that's impressive! You'd think all the smaller-time assholes of Hollywood would learn from their example, but they don't. Because setting up your life to allow for an acceptable level of assholery requires enough self-awareness to know that you are in fact an asshole, and enough awareness of social norms to know that being an asshole is problem under normal circumstances. And that's what the B-listers refuse to learn.