When are the Avatar sequels released in cinemas? How many are there and who's in the cast?

James Cameron is hard at work on FOUR follow-ups to his 2009 hit. Here's everything we know about them...
Read more: https://www.radiotimes.com/news/film/2019-04-23/avatar-sequels-delayed-cinema-release-date-cast-plot-trailers-james-cameron-kate-winslet/?source=Snapzu