Mark Ruffalo lends his support for Solar Bihar project, urges people to adopt renewable energy
My kids find me uncool: Mark 'The Hulk' Ruffalo
'Avengers: Age of Ultron' trailer: James Spader is a terrifying Ultron; Robert Downey Jr's Iron Man debuts the 'Hulkbuster Suit'
Rebooting 'Spider-Man', in a flash
Actor Mark Ruffalo talks about 'The Avengers'