Tilda Swinton is in negotiations to portray the Ancient One in Marvel's highly-anticipated Phase Three adventure Doctor Strange. She joins Benedict Cumberbatch as the title character, and we reported in January that Chiwetel Ejiofor has been in talks to play the villain, but that was never confirmed. Production is scheduled to begin this November in the U.K., with Marvel already setting a November 4, 2016 release date.

In the Marvel comics, The Ancient One is a Tibetan monk who served as Stephen Strange's (Benedict Cumberbatch) mentor on his journey to becoming the Sorcerer Supreme. The character is male in the comics, but after searching for a male actor, the studio rethought the role and reworked it for a female actress. If Tilda Swinton does sign on, it will be her first Marvel movie, although she has previously starred in comic book adaptations such as Constantine and last year's Snowpiercer.

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Scott Derrickson (Deliver Us from Evil) is directing Doctor Strange from a screenplay by Jon Spaihts (Prometheus), with Kevin Feige producing. No story details have been released at this time, but the plot is rumored to follow Stephen Strange, a neurosurgeon who discovers a world of magic and alternate dimensions, after suffering from a horrific car crash. Tilda Swinton will next be seen in this summer's Trainwreck and the Coen Brothers' Hail Caesar.