We've heard rumors of a 'Planet Hulk' movie since early last year, but everyone from Joss Whedon to Mark Ruffalo have denied those claims. And, here's the thing: they're right (sort of). There won't be a Planet Hulk movie (sort of). But, it's what Whedon, Ruffalo and Marvel aren't telling you about the future of Hulk in the Marvel Cinematic Universe that prove there is some truth to the 'Planet Hulk' rumors after all. MAJOR 'AVENGERS 2' SPOILERS AHEAD!