The "Avengers: Age of Ultron" cast and crew have been giving numerous bits and pieces to provide a deeper look into the movie. Much effort was given to make the film more than just an action adventure and place the essence of heroism in question.

Mark Ruffalo has been the most vocal and accommodating among the cast, and he describes the situation in the sequel as an 'existential crisis.'

From Entertainment Weekly:

"Joss [Whedon] is in his full height of his powers. This movie is much more sprawling and epic than the first one. They're really in an existential, dire crisis. It has a darker quality. The Avengers are really struggling with their own shortcomings and the dissolution of S.H.I.E.L.D. and where they go and who they are in the world. There's a lot of negativity towards them."

Of course, he gives us a very detailed and introspective description on the dilemma of his character. His insights show that he went to great lengths to really study his character-something that will be brought to the forefront in the sequel:

"I think they set it up nicely now that Banner's turning 46 years old, and there comes a point where it's like 'how much more running can I do for myself?' Whatever you hate about yourself or you don't like, when you get to be 46 years old, you start to say 'okay, no.' Obviously, you can never really get away from yourself, so you start to live with some of the things you think are so bad. And maybe they're not that bad. Maybe those things are what you need to do whatever you were never able to accomplish."

"I think that's the ticket forward for Banner, to start to figure out where we go with him, to keep that story interesting. I think there's a whole relationship with Banner and Hulk that needs to be discovered. There's a very cool thing happening: Hulk is as afraid of Banner as Banner is afraid of Hulk. It's in the comics. But because you haven't really been able to get inside of Hulk's head, because the [cinematic] technology wasn't available to make it nuanced enough to do that, and now it is. So now I think there's a way to do it. Both of these guys are obviously the same guy, and they have got to come to peace somehow with each other. And I think that this confrontation is building along the lines of this film."

"He's terrified of him. What makes Hulk afraid? It's himself. It's a version of himself that's weak. It's a version of himself that's vulnerable. It's a child inside of him. It's very interesting, and I'm stumbling on this. And I don't know if this is where the next version will go. But if it is in the cards that we're doing the next version of this, I see some fertile ground there. I've been mulling this over now for a few years. And I haven't pushed for it because I honestly didn't know what hadn't been done. And this time, there's an interesting confrontation on the horizon between these two. It's existence. They're fighting over existence, you know?"

Props to Mr. Ruffalo and Joss Whedon for their attempt to explore more of the relationship between Bruce Banner and the Hulk. We hope it sheds more light on the dynamics of Banner's transformation into the green monster, and not just dismissing it as 'anger.'