Continuity mistake: When Tommy and Greg get into the limo to head to the premier, there are boxes of The Room merchandise and promotional material scatted all about in the limo and filling the driver side of the back seat. But in the shots after they drive past the theater, the seat is suddenly completely empty with all those boxes disappearing. They are also missing in several of the close ups of Tommy, then back in others. (01:20:15 - 01:21:00)Quantom X
Factual error: The movie's set in the late 90s, but a 2015 Lexus and Audi are visible behind a girl when they first arrive in LA. (01:23:00)
Trivia: To promote this film, Disaster Artist, distributors found and rented out the exact same billboard on Highland Avenue in LA that Wiseau had used for his movie, The Room. Wiseau used this billboard for five years promoting his film, and the Disaster Artist mimicked The Room's layout in it's billboard included the phone number to RSVP for the screenings.Quantom X
Judd Apatow: I'm not saying maybe, I'm saying not in a million years.
Tommy Wiseau: But after that? (00:32:30)