Mark Ruffalo is thrilled to be playing his favourite comic-book character in a new movie.

The actor was delighted to be offered the role of Bruce Banner and his Alter Ego The Incredible Hulk in 'The Avengers' because it was someone he had always been fascinated by.

He said: "I grew up loving The Hulk. He was by far my favourite comic-book character, and I always used to watch the TV show, which was brilliant. You could see him struggling with the human aspect of what was happening."

The 42-year-old actor also admitted it is rare he would agree to star in such a big-budget blockbuster, but knew it was an opportunity he couldn't miss.

He said: "I know some people don't associate me with these really big productions. I generally prefer the rough and tumble of smaller filmmaking, but this was such an opportunity."

The star has also seen instant benefits to the boost in profile that his attachment to the Marvel movie has given him.

He explained: "Honestly. Just consider 'Second Coming', which I am doing with Marion Cotillard.

"It was completely dead, and when they announced that I had got 'The Avengers', literally, a couple of hours later the finance was pushed through. How cool is that?"