What do Tom Cruise, Brad Pitt and Will Smith have in common? They’re three of the world’s most bankable movie stars, right? Not this summer. World War Z s considered a flop, Oblivion didn’t do well at all, and After Earth could have been called Hot Turd it was such a stinker. Movie companies are rethinking the expensive action star in the cray expensive blockbuster, because so far this summer, the formula just hasn’t worked. Thank God for Robert Downey Jr!