I think the thing that bothered me most about the Happening is not so much how terrible it is, but how badly filmed it is. Whatever you think of his films (and I kinda go up and down) the man can direct tension very well, and his films always look good and are usually well acted. The Happening didn't even have these elements to make up for a ludicrous plot! It seemed to be filmed and acted like a bad TV movie.
I really think that (if he's ever let near a film again) then he should either direct someone else's script or else write a script that someone else directs.