Interesting, I wonder how good this will be? Anyone read "Planet Hulk" storyline? Check out the cool trailer: they got it right , with the exception that Hulk's opponents in the arena are robots instead of living beings.
http://www.youtube.com/watch?v=cf13JRZKspM Here's a review from Wired, which says it's not bad, but not as good or nuanced as the actual books: http://www.wired.com/underwire/2010/02/review-planet-hulk/ I read the Planet Hulk compilation last year. The story is a familiar scifi story: Hulk trapped in a strange land, forced to become a gladiator, escapes to oppose the evil emperor, becomes a hero/savior to the people. But the way it was handled was really good. Hulk's powers are reduced due to a space warp that brings him to the planet, which allows his capture and enslavement. There are some cool characters, such as Caiera, an alien from a race where some members can draw strength form the planet itself. The power is rare, which is why Caiera's ability to use it makes her the "Oldstrong". and there's Korg, a member of the race of beings that the Easter Island statues are based on. This was all precipitated by Reed Richards, Tony Stark, Black Bolt, and Dr. Strange having tricked Bruce Banner into a spaceship they were using to banish him for all time. The ship missed the peaceful planet Reed had intended due to Hulk's rampage, and landed on this hellish planet instead. Good story, I really enjoyed it. That was followed by "World War Hulk", where Hulk returns to Earth to get revenge on Reed and company. that was good too, but not as good as Planet Hulk. I really am intrigued to see if the cartoon can get it right, especially given the worrying lowering of the adult themes for a younger audience.