There have been rumours of trouble behind the scenes on The Incredible Hulk, which opens this Friday, but Marvel Studios has had enormous success already this summer with Iron Man — which may turn out to be the only film this summer that grosses over $300 million. And Marvel has already announced its intention to bring all its heroes together in one big cross-over film called The Avengers, three years from now. So is it any wonder that, just to be safe, they would run a Hulk ad like the one here — even though it may or may not begin with a spoiler?