A Sword Art Online movie is currently under development according to a video announcement streamed by Dengeki Online. This was revealed in a stage event at the Dengeki Bunko Autumn Festival. This film will be an anime original work with a new story written by Reki Kawahara, who is the author of the original Sword Art Online light novels. The movie will be animated by A-1 pictures, directed by Tomohiko Ito and will feature character designs by Shingo Adachi.
More information will be revealed on October 10 in the next issue of Dengeki Bunko Magazine. Once this additional information is available we shall post about it here as well to keep you all informed about this new movie.