I'd have to say Avatar was the worst film I've ever seen. (although I've only seen about half of it because I got furious and bored at that point). It's superficial, cliched, patronising, lazy and pointless. It's insultingly bad. Utter waste of a gazillion dollars on a fool who'd wasted similar amounts on the equally shite Titanic a few years before
I made an effort to avoid Avatar based on reviews, looks like a good decision. However I do need to add the execrable Titanic to my shitlist and I'll see your Avatar and raise you WATERWORLD.