Mark Ruffalo has teased that Avengers: Age Of Ultron will be "better" than the first film.
The US actor is set to reprise his role as Bruce Banner/The Hulk in Joss Whedon's Marvel superhero sequel, alongside Robert Downey Jr, Scarlett Johansson, Chris Hemsworth, Jeremy Renner, Chris Evans and Samuel L Jackson.
"I would say that it's better, it's cooler, it's more awesomer," he told MTV.
"It's a little bit darker, but also really has Joss Whedon's incredibly, witty and sly sense of humour."
Mark - who was at the Sundance Film Festival in Utah to promote comedy, Infinitely Polar Bear - revealed there will be some more "great" moments for his green, mean alter-ego Hulk.
"[Bruce Banner] gets to do such great stuff," he said.
Aaron Taylor-Johnson, Elizabeth Olsen and Don Cheadle have also joined the star-studded cast of Avengers: Age Of Ultron, which will be released in May 2015.