Scott Derrickson's Sinister Co-Writer Working on Doctor Strange

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(Photo: Marvel Studios)

C. Robert Cargill, who co-wrote Sinister with filmmaker Scott Derrickson, has apparently been pitching in on Marvel's Doctor Strange, which Derrickson will direct.

The revelation came today via Twitter after rumors started making their way online; Cargill posted an image from a Doctor Strange comic along with a caption that he'd been working on the project in secret for almost a year.

You can check it out below.

Benedict Cumberbatch (“Black Mass,” “The Imitation Game”), Chiwetel Ejiofor (“12 Years a Slave,” “The Martian”), Rachel McAdams (“Southpaw,” “Sherlock Holmes”) and Michael Stuhlbarg (“Steve Jobs,” “A Serious Man”) with Mads Mikkelsen (“Clash of the Titans,” “Casino Royale”) and Academy Award® winner Tilda Swinton (“Michael Clayton,” “The Grand Budapest Hotel”). The film, which opens in U.S. theaters on November 4, 2016, is directed by Scott Derrickson (“Sinister,” “The Exorcism of Emily Rose”). The film will be shot in several locations around the world, including London, New York, Hong Kong and Kathmandu, Nepal.

“Doctor Strange” follows the story of neurosurgeon Doctor Stephen Strange who, after a horrific car accident, discovers the hidden world of magic and alternate dimensions.

“Doctor Strange” is the latest film in Phase 3 of the Marvel Cinematic Universe. Phase 3’s goal—over the course of four years and nine films—is to introduce audiences to new heroes and continue the adventures of fan favorites.

Marvel’s “Doctor Strange” is produced by Kevin Feige with Louis D’Esposito, Victoria Alonso, Charles Newirth, Stephen Broussard and Stan Lee serving as executive producers.

Director Scott Derrickson’s creative team also includes director of photography Ben Davis, B.S.C. (Marvel’s “Avengers: Age of Ultron,” Marvel’s “Guardians of the Galaxy”); production designer Charles Wood (Marvel’s “Avengers: Age of Ultron,” Marvel’s “Guardians of the Galaxy”); costume designer Alexandra Byrne (Marvel’s “Avengers: Age of Ultron,” Marvel’s “Guardians of the Galaxy”); editors Wyatt Smith (“Into the Woods,” Marvel’s “Thor: The Dark World”) and Sabrina Plisco, ACE (“Mr. Magorium’s Wonder Emporium,” “Charlotte’s Web”); and visuals effects supervisor Stephane Ceretti (Marvel’s “Guardians of the Galaxy”).

Check out when Doctor Strange and other movies are coming out in ComicBook.com's Movie Release Schedule.