According to Greg Sestero, Tommy Wiseau submitted the film to Paramount Pictures, hoping to get them on board as distributor. Usually, it takes about two weeks to get a reply from such a studio. This movie, however, was rejected within 24 hours.
Towards the end of the Los Angeles portion of the shoot, morale among the crew was so low that Todd Barron's name was not listed on the clapperboard, take numbers were not being recorded, giggling crew members wandered in and out of shots, and entire scenes were out of focus simply because nobody bothered to check the lens.
Shot simultaneously on 35 mm film and high-definition video. Tommy Wiseau was confused about the differences between the two formats, but he decided use both of them, as he wanted to be the first director to shoot on film and HD simultaneously. In order to do that, he had a custom mount constructed to house both cameras, unaware that he would need a different crew and lighting setup for each. He also purchased the cameras instead of renting them as film productions usually do, with the cost of the HD camera alone being $100,000. Despite this, only the footage shot with the 35 mm film camera was eventually used.
According to Tommy Wiseau, Denny has some sort of mental disorder, which explains his behavior in the film. He didn't bother mentioning this to Philip Haldiman during production.
According to Juliette Danielle, when Tommy Wiseau said the line, "In a few minutes, bitch," everyone on the set began laughing at him. Wiseau came out of the bathroom and demanded to know what was so funny.