Durham Cathedral, which doubled as Hogwarts School of Witchcraft and Wizardry in the "Harry Potter" franchise, will also be used in Marvel's "Avengers: Infinity War."

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When student sleuths from the cross-university news network The Tab learned that the cathedral, located in the North of England, was closed for a “major event” running from May 4-6, they investigated and found a large amount of film equipment, including green screens, inside its grounds.

While they weren't able to sneak any of the photos they took past a private security company, they were able to snap some pictures of the hired vehicles parked at the rear of the building. These vehicles had cards in their windows marked “Rigging” and “Construction,” and a "Mary Lou" logo. From the entertainment industry website Production Weekly, the The Tab's team were then able to confirm that "Mary Lou" is in production title of "Avengers: Infinity War."

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What remains to be seen is which actors will be filming at the 11th-century cathedral and whether the location will be appearing as itself in the finished film or whether it will, as with the "Harry Potter" series, serve as a "body double" for some other vaguely ecclesiastical location.

Directed by Joe and Anthony Russo, “Avengers: Infinity War” boasts a sprawling ensemble cast that includes Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Samuel L. Jackson, Cobie Smulders, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Tom Holland and Anthony Mackie. The film arrives in theaters May 4, 2018, with the untitled sequel opening May 3, 2019.

(via Cinemablend)