'Thor: Ragnarok' spoilers: Bruce Banner vs. Hulk? Mark Ruffalo teases character's ultimate nemesis

The defining battle for Hulk in "Thor: Ragnarok" won't be one against Loki or even Thor. Mark Ruffalo teased that the Green Goliath will be dealing with a serious confrontation with his alter ego Bruce Banner.
"They're coming for a collision course with each other. I think could be pretty exciting if we could find a way to do it, multi-dimensionally," the actor told Collider.
Ruffalo says that "Thor: Ragnarok" will explore the fact that Hulk, in all his killer mass and anger, is scared of no one but Bruce Banner.
"He's ultimately making and his relationship to the Hulk. And how that is going to resolve itself. No one's really gone to that place," the "Now You See Me" actor continued.
"Thor: Ragnarok," despite being a solo film from the Mjolnir-wielding Avenger, will also be big on Hulk. Ruffalo even called the film a "buddy road comedy" between Hulk and Thor.
More than that, the third "Thor" film is reportedly featuring its version of the Marvel Comics "Planet Hulk."
Spoiler Alert! The following contains potential details about "Thor: Ragnarok." Proceed only for those who wish to know.
In the popular comic book story, Hulk was exiled from planet Earth and is brought to another one called planet Sakaar, where he was forced to fight gladiator battles and ultimately became a slave.
According to reports, Thor will find his green friend there and they start a journey in "Thor: Ragnarok." To note, the two Avengers weren't in "Captain America: Civil War."
Production for "Thor: Ragnarok" starts next month and Karl Urban who was cast to play the role of Asgardian warrior Skurge, can't wait to be on set and work with director Taika Waititi.
"I will say that I read a fantastic script - a really fun, engaging script," Urban told Digital Spy. "I can't wait to get on set with Taika and the cast. We're going to have a lot of fun," he added.
"Thor: Ragnarok" stars Chris Hemsworth, Tom Hiddleston and newcomer Cate Blanchett. The film will be in cinemas Nov. 3, 2017.