Marvel Studios reveals why they never adapted ‘Planet Hulk’ into their own film. ‘Planet Hulk’ was a storyline that ran through The Incredible ‘Hulk’ comics between April 2006 to June 2007 from writer Greg Pak and artists Carlo Pagulayan and Aaron Lopresti. The storyline involved the Hulk landing on the alien planet of Skaar and leading a gladiatorial revolution.
Since the comic's release, it has been cited as one of the best Hulk storylines and one that many fans wanted to see adapted into a feature film. However, the complicated rights over the Hulk with distributor Universal Pictures always held up a potential solo film. Combine that with the fact that The Incredible Hulk is the lowest-grossing film in the Marvel Cinematic Universe, a Hulk sequel, particularly one where most if not all the characters would have to be CGI, would be a difficult sell. Storyline elements like the planet Skaar, characters Korg and Miek, and ‘The Hulk’ as a gladiator would be adapted in the film ‘Thor: Ragnarok’.
Read more: New ‘Eternals’ video confirms that ‘Superman’ exists in MCU
In the recently released book ‘The Story of Marvel Studios: The Making of the Marvel Cinematic Universe’ by Tara Bennett and Paul Terry, it is revealed that one of the biggest obstacles in adapting the storyline for a film was actually how little Bruce Banner plays a role in the story. In the book, Marvel Studios President Kevin Feige said that "We never even considered doing Planet Hulk because, as cool as we thought the comic was, Bruce Banner is not a part of ‘Planet Hulk’." Joss Whedon was also instructed to change the ending of ‘Avengers: Age of Ultron’ so fans would not think they were doing a ‘Planet Hulk’ movie. -Collider