When actress Zoe Saldana isn't Guardians of the Galaxy's Gamora or Star Trek's Uhura, she finds time to star in her other acclaimed sci-fi franchise, Avatar. Now Saldana has provided us with an update on the Oscar-winning film's three sequels. In an interview with Daily Mirror, Saldana told the site that as soon as director James Cameron finishes writing Avatar 2, 3 & 4, he will call the cast and begin shooting the films back-to-back.