Kate Winslet stars as Ronal, a leader of the water-based Metkayina clan, who inhabit the reefs of Pandora.

In other words, a classic Cameron female protagonist.

Discusses reuniting with Cameron after 26 years, her first foray in  performance capture, and holding hands with Sigourney Weaver.

Ronal is a formidable female character.

She holds her family's needs close to her heart and will stop at nothing to protect them.

Playing opposite Zoe Saldaña's Neytiri was just wonderful.

They are both powerful, willful creatures who respect their husbands but will not be led by them.

Film-maker Jim Cameron says working on the project was like 'being in a really cool tech gang, but on steroids'.

Putting the skills together and performing with Sig at the bottom of a  15 ft tank for four minutes at a stretch was a highlight of my career.