I seldom really, really, dislike a film. I am tolerant to the max if I find an element or two that is fetching, exciting, or even mildly amusing. I love gadgets, well done action, and lots of comedy.
This film is simply painful to watch. It is amateurish. Its writing is execrable. We don't ask much... A plot can be formulaic, but not openly clumsy. Rogen & friend missed by a mile. Rogen can't even carry off his own character competently despite the fact that the character has no redeeming qualities.
Jay Chou is completely wooden, totally failing to make his character alive, let alone interesting. Christoph Waltz gets credit for his valiant attempt at an American accent, but lapses constantly. He'd do better with an indeterminate euro accent if he didn't want to get labeled for his German one. Diaz is fetching, but completely wasted. She tried, but couldn't get past the material.
This film proves that simply destroying everything in sight isn't enough. Even the gadgets are so poorly showcased they are made uninteresting.
All in all, I predict this film will ultimately take its place among the worst of all time, appealing only to the most trite minds on earth.