Mark Ruffalo has a lot to say about The Hulk and the changes fans and moviegoers will see in the hotly-anticipated film "Avengers: Age of Ultron." In an interview with Empire Magazine, the actor revealed that his character Bruce Banner will be "matured" compared to the last film. 

"He's become more acclimated to this thing and to being part of the team. I think he feels more a part of them all," Ruffalo revealed to the online publication. The actor added that "Avengers: Age of Ultron" is "much more character-driven," which will look into each of Earth's Mightiest Heroes and "their own cool little thing." 

Ruffalo also dished out about Banner's control of his emotions or if his massive power would come rushing out from out of the blue to bring demolition at some point in "Avengers: Age of Ultron." In "The Avengers," Banner was able to transform into his giant strongman alter ego at will. But Ruffalo thinks that "there's some part of him that doesn't completely trust it and doesn't completely trust himself" as "there's a battle going on between these two opposing egos that live inside him." 

"Hulk is the kind of wild card. He's the loose cannon of the group. He's more like an atom bomb," Ruffalo revealed. "You could guess where he's going to go but he could go either way. I think that there is, obviously, the day when everyone expects it to go wrong and that day comes. And they're ready. And Bruce designed the contingency plan." 

Just recently, Scarlett Johansson also dished out details about her character Black Widow. Speaking to W Magazine, the actress revealed that more of Natasha Romanoff's past will be explored.

"In the sequel, you learn more about the sadness in her past. I think of her that way. Black Widow is a superhero but she's also human. She's small, but she's strong. It's hard not to admire her," explained Johansson who also expressed how the femme fatale "resonated" with her. 

"Avengers: Age of Ultron" will be out on May 1 where the band of heroes will have to deal with Tony Stark's very own creation gone evil.