The 55-year-old "Mission Impossible: Ghost Protocol" helmer had been linked to the Disney-backed project, but took to Twitter to make it clear that he will not be part of the film, reported Digital Spy online.
"Not doing Star Wars. Doing a science fiction film. Not Star Wars," Bird tweeted.
"The science fiction film I am doing is going to be cool," he added.
Bird went on to reveal that the movie he is scheduled to direct is "1952", which is rumoured to feature George Clooney.
"I'm not slamming Star Wars. I'm just doing 1952. That said, Michael Arndt is a fantastic writer and Kathy Kennedy is a brilliant producer. I will be first in line to see the new Star Wars," the filmmaker posted.
Last week, Disney and Lucasfilm confirmed that "Star Wars: Episode 7" will be written by 'Toy Story 3's Michael Arndt and produced by Kathleen Kennedy.
The film, which is currently in pre-production stage, is due to be released in 2015.
