LOS ANGELES - Twenty years after actress Kate Winslet starred in James Cameron's Titanic movie, they are teaming up again.

She has signed on for his upcoming Avatar sequels.

"Kate and I have been looking for something to do together for 20 years since our collaboration on Titanic, which was one of the most rewarding of my career," Cameron told Deadline.com.

It is not known if she will appear in one or all the four planned sequels.

Cast members from Avatar (2009) - Sam Worthington, Zoe Saldana, Sigourney Weaver and Stephen Lang - will return for the sequels.

The first sequel is set to be rolled out in 2020.