Terminator Salvation star Sam Worthington believes filmmaker James Cameron's Avatar follow-up will be "monumental."
Worthington, 35, who starred in the movie along with actress Zoe Saldana, says Cameron is to try something even more adventurous for his next film, possibly setting it underwater, Contactmusic reported.
"I spoke to James recently and he told me the story and it's monumental, where he's thinking of taking it. It's just a matter of him writing the script, piecing it together and figuring out how to push himself. He wants a challenge. And he wants to improve the audience's experience. He's been messing about with 3-D and frame rates a lot more," he said.
Worthington is prepared to go anywhere Cameron wants in order to challenge him.
"I'm up for whatever James wants me to do. If he wanted me to go to the moon, I'd do it. He's the type of guy that, not just as a director, but as a good friend, challenges me as a man.
"James went on a submarine for his birthday and he's been doing a lot of free diving. I happened to be working when he went underwater, but I'd have loved to go," he added.