Netflix will release a documentary about the making of its stage show, Stranger Things: The First Shadow.

Netflix is taking its subscribers inside the production and opening of "Stranger Things: The First Shadow," the successful London (and now Broadway) play that serves as a prequel to the streaming service's immensely popular sci-fi series.

Netflix has released a trailer for its new documentary about the making of Stranger Things: The First Shadow, the stage adaptation that was a hit on the West End and begins Broadway previews tonight.