Deadwood: The Movie's production designer had to carefully watch old episodes because blueprints for original sets disappeared

The New York Times

“The show was canceled so abruptly and everybody was so traumatized that nobody bothered to save them,” said Maria Caso, the production designer on the HBO TV series and the film. Caso and her team carefully watched old episodes frame by frame to reproduce the old Deadwood set. “We watched the show over and over to try to remember what we had built,” she said, adding: "The audience, they check on everything. So we did a lot of research before we started drawing or building. We really wanted to recreate as many of the details as we could, just so it’s true to history, and to honor that.”