Mark Ruffalo talks 'The Avengers 2: Age of Ultron' script and an eco-friendly standalone Hulk movie

Mark Ruffalo once again plays Dr. Bruce Banner/The Hulk in Joss Whedon's sequel The Avengers: Age of Ultron aka The Avengers 2 in 2015. The actor appeared for a Q&A session at the Sundance Film Festival recently and revealed two interesting pieces of information about his future in the Marvel Cinematic Universe.

During the Q&A, the discussion turned to a subject very close to Ruffalo: the preservation and protection of the environment. He said he wants to use his fame to spread a positive message and was asked how he could apply that message to a blockbuster like The Avengers, and this is how he responded (via Total Film):

"I think that's the way to go, and it's a trend that'll start to develop. As a culture, when we latch onto a fad, we're actually working something out in the creative subconscious. The fact that all these doomsday and end-of-times movies are coming out is because we're actually working that out in the culture. I'm in The Avengers, but if you took my screen time it would come to about ten minutes, along with the 12 other people I'm sharing the screen with, so my input's kind of limited on that. But if we get to a standalone Hulk movie, I'll have a much better chance to do that. I'm just learning now how to find my voice and bring it into the studio world."

MTV then caught up with Ruffalo at Sundance and he offered a quick tease about The Avengers: Age of Ultron after he read the script:

"I would say that it's better, it's cooler, it's more awesomer. It's a little bit darker, but also really has Joss Whedon's incredibly, witty and sly sense of humor." He added that Bruce Banner "gets to do such great stuff" in the sequel.

What do you make of Ruffalo's comments, fans? Let us know in the comments below.