Hulk solo film would be really interesting: Mark Ruffalo

London: Actor Mark Ruffalo thinks a solo movie for character The Hulk would be tough to make but exploring the conflict in a superhero`s life could be interesting.

The 46-year-old actor, who played the famous green superhero in `The Avengers`, said his character does not like fighting crime, but it`s his inner-conflict as alter ego Dr Bruce Banner which could make a standalone film work, reportedly. "It could get very boring to watch the guy who`s moping around who doesn`t want to do the very thing that we`re all dying to see him do. And so I think that`s the tough part of cracking that nut. I think that`s what`s made it problematical in the past. "But I do feel like we`ve gained some ground on this new version of him, which has - he`s sort of turning to face himself, and I think the relationship between Banner and The Hulk as a conscious conflict, it could be really interesting. The one thing that I think The Hulk is terrified of is Banner, and that`s never really been mined," he said