Edward Norton says he is sad he would not be reprising his role from 2008 action film The Hulk in the new Avengers movie.

Studio Marvel has recently issued a statement declaring they are looking for a new actor to play Dr Bruce Banner/The Incredible Hulk in Joss Whedon's long-awaited summer 2012 blockbuster.

"Our decision is definitely not one based on monetary factors, but rooted in the need for an actor who embodies the creativity and collaborative spirit of our other talented cast members," Marvel said.

Norton on Monday thanked fans for their support through his Facebook page.

"It seems it won't work for me to continue playing Bruce Banner for Marvel in The Avengers," he said. "I sincerely hoped it could happen and be great for everyone, but it hasn't turned out as we all hoped. I know this is disappointing to many people and that makes me sad.

"But I am sincerely grateful to Marvel for extending the offer and even more so for giving me the chance to be a part of the Hulk's long and excellent history.

"And I really can't thank fans enough for how much enthusiasm you've sent my way about what [director] Louis [Leterrier] and I tried to do in our turn with the legend. It means a lot to me.

"I grew up with Banner and Hulk and have been a fan of every incarnation. I'm really proud and very blessed to have been one of them and will be thrilled to see him live on through other actors. Hulk is bigger than all of us, that's why we love him, right?"