Los Angeles - Sam Worthington would make '10' Avatar films if he was asked.
The 35-year-old actor - who portrayed Jake Sully in the futuristic adventure movie directed by James Cameron - would happily go back as often as he is asked to because he loved working on the first project so much.
He said: "I love it! I'd do two, three, four, five, six, seven, eight, nine and 10 with Jim. I love working with him. He raises the bar and gives you the courage to jump over it, and he keeps pushing.
"He changes your life. He hasn't just changed my life, career wise. He's changed my life, as a man, which is nice."
Sam also confirms James - who is best known for directing Titanic with Kate Winslet and Leonardo DiCaprio - is still working hard on the forthcoming sequels to the movie, and is just waiting to be told when to start filming for it.
He said: "Jim talked to me on my birthday. In regards to Avatar, he's writing the bible, at the moment, which is a precursor to Avatar and the whole world, basically. I think it's just to get Jim's mind back into the characters and back into the world.
"He's told me where he wants to take Avatar 2 and 3, and it's monumental. It's just huge! But, you'd expect nothing less from him. He's not going to start it until he's 100%. I know they're setting up shop down in Manhattan Beach, and when he says jump, I jump."