But everybody has seen footage of people jumping [into water], many people have done it themselves. We shot references of all the costumes underwater and how they moved to make sure that it was ...

Of course, my final answer was go big or go home," he said of "Avatar: The Way of Water," which premieres Dec. 16. MORE: Sam Worthington says 'Avatar: The Way of Water' is an 'experience': 'You're ...

Believe it or not, but Avatar: The Way of Water is happening ... and they're all in motion-capture costumes.

Titled Avatar: The Way of Water, the film centers around the original film's main characters Jake Sully (Sam Worthington) and Neytiri (Zoe Saldaña) as they embark on a new adventure as parents.