• Director James Cameron attends SiriusXM's Entertainment Weekly Radio Channel Broadcasts From Comic-Con 2016 at Hard Rock Hotel San Diego on July 22, 2016 in San Diego, California.

Director James Cameron attends SiriusXM's Entertainment Weekly Radio Channel Broadcasts From Comic-Con 2016 at Hard Rock Hotel San Diego on July 22, 2016 in San Diego, California. (Photo : Getty Images / Vivien Killilea)

The production of "Avatar 2" will start in 2017 and its release date is hinted to be a year after that. Actor Stephen Lang who will reprise his role in the "Avatar" sequel as Colonel Miles Quaritch, recently gave some hints about the upcoming movie. He was part of a panel discussion at Wizard World Comic Con Chicago where he talked about the production and the possible release date of the film that will give sequel to the 2009 alien movie.

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"As the New Year turns, we start to shoot for the Avatar sequels," Lang said during the panel discussion. "I think that the whole process of making the films and opening the films will go to about 2023."

Lang's revelation about the alien saga matched with the announcement from director James Cameron in April during the CinemaCon in Las Vegas. Cameron said the movies would be released in 2018, 2022 and 2023, Screen Crush reported. Cameron first envisioned two more sequels after making the original film, but later had four films after a brainstorming session with graphic designers and screenwriters.

While possible sequels were immediately announced after the 2009 film, the production of the sequel was delayed, with Fox refusing to comment on the film's release date. For Cameron, the important thing is to focus on the story, and not to worry about release date.

"I don't consider that to be as important," he told Montreal Gazette in an interview in December during the world premiere of the "Avatar"-inspired "Toruk-The First Flight" by Cirque du Soleil. "When we get all three films done, we drop them a year apart."

The 61-year-old director further revealed the film about Na'vis will have more CGI than the first one. It will more like an animated film with lots of performance capture. The crew reportedly work  with Peter Jackson's WETA tech to come with CGI effects for the movie and that there will be more underwater scenes.

Cameron has sufficient oceanography knowledge as seen in his work in "The Abyss." His upcoming alien film however, is said to have underwater as a place where the Na'vi will come and go.

Watch the latest trailer of Cameron's upcoming movie below.