Mark Ruffalo really wants to make a standalone Incredible Hulk movie, but in a recent interview with Yahoo, he explained why it could be a while before fans get to see that happen.
According to the actor, even though the Hulk has made multiple appearances in various Marvel movies (including a Bruce Banner cameo that came after the credits rolled in Iron Man 3) Universal still owns the rights to the character.
"Marvel and Universal famously don't get along, and so that's working against us, definitely," Ruffalo told the site. "But I know for a fact that everyone is holding out hope that one day we can do it."
Ruffalo added that the "nature of the relationship right now" most certainly wouldn't allow for any kind of collaboration between the two studios, but that could change with different executives coming to and leaving Universal and Marvel. Universal originally held the full rights to the character, but after production issues faced the studio after Ang Lee's 2003 installment, some of the rights reverted back to Marvel. That, however, did not give Marvel any kind of ownership over the character, but allowed the studio to loan the Hulk and use him in a few of their films.
It wouldn't be unprecedented if Universal did figure out a way to share the rights to the character with Marvel, either. Just this year, Marvel and Sony set aside their differences to figure out a shared ownership over Spider-Man, and now the character will be making his first appearance in the Marvel universe next year during Captain America: Civil War.
Ruffalo has expressed interest before in reprising his role as the Hulk in a standalone movie, but as for right now, the character is rumored to have a big role in the upcoming Thor: Ragnarok movie alongside Chris Hemsworth. That's slated to hit theaters Nov. 3, 2017.