If the purported working title of a new X-Men film didn't already have fans convinced that Fox is returning to "The Dark Phoenix Saga," the latest tidbit undoubtedly will.

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Production Weekly has updated its listing for "X-Men: Supernova" to include the working title "Dark Phoenix," an obvious reference to the classic "Uncanny X-Men" storyline in which Jean Grey assumes the power of the Phoenix Force but ultimately becomes corrupted by it. When her power is drained, she consumes the energy of a star, causing a supernova that destroys the populace of a nearby planet. In the end, Jean sacrifices herself (only to return in Marvel comics on more than one occasion).

Elements of "The Dark Phoenix Saga" were used in 2006's "X-Men: The Last Stand," but franchise executive producer Simon Kinberg has indicated he'd like "another stab" at the storyline by Chris Claremont and John Byrne.

It's of course assumed that "X-Men: Supernova," or "Dark Phoenix," is the planned franchise reboot first reported in November. Kinberg is said to be writing the screenplay with Jennifer Lawrence, Michael Fassbender, James McAvoy and Nicholas Hoult. However, all four actors were signed only to a three-picture deal, and Lawrence has made it clear she has little interest in returning for an X-Men film.

Reports suggest that "X-Men: Supernova" will begin shooting May in Montreal, the same location as "X-Men: The New Mutants."

(via ComicBook.com)