* TheDanza: ''Subverted'' with Mike Holmes as Mike. Believe it or not: according to ''The Disaster Artist'', the actor's name is actually ''Scott'' Holmes and Wiseau credited him as "Mike Holmes" because ''he had forgotten Holmes' real name''.
* DawsonCasting: Inverted. Lisa has been together with Johnny for seven years, yet was played by a 22-year-old actress. Though her character was probably meant to be older, the contrast of the actress's age with Johnny's Tommy Wiseau being in his late 40s made this all the more noticeable.
** Played straight with Philip Haldiman, who was one of the oldest members of the cast and played the youngest character.
* DoingItForTheArt: Tommy Wiseau. The man spent years raising six million dollars to write, produce, direct and advertise his dream project with absolutely no studio support. The amount of time and effort he poured into making it a reality is nothing short of astonishing - perhaps even inspiring.
* FanNickname: Greg Sestero (Mark) is referred to as "Sestosterone".
** Mike is the "Me Underwears" guy. But only because that's more succinct than "Hilarious Blowjob Face" guy.
* MeanCharacterNiceActor: Judging by her twitter, the actress who plays Lisa, Juliette Danielle, is actually very sweet, unlike her bitchy character Lisa. Not to mention she has a great sense of humor about her part in the movie, and has stated that she LOVED WebVideo/TheNostalgiaCritic's review of it.
** Most of the cast are this as well, especially Greg Sestero (who appeared on the WebVideo/TheNostalgiaCritic reprising his role as Mark). The exception is Tommy himself, as how he reacts to you depends on ''when'' you encounter him.
* MoneyDearBoy: Sestero considered leaving the set due how difficult it was...but didn't for this reason.
* OneBookAuthor: To date, this is Tommy Wiseau's only feature film, and none of his online projects have gained as much notoriety or cult following.
* TheyJustDidntCare: [[invoked]] As production dragged on, professionalism just fell apart. Most of the crew were convinced the film would never be seen by anyone. Greg Sestero admitted to phoning in his performance. Entire scenes were out of focus because they did not bother to check the lens.
* ThrowItIn: According to a crew member, the infamous "Hai doggie" scene was one of these. The owner of the flower shop they were filming the scene in just happened to have the dog there and it hadn't moved at all during the filming so Tommy Wiseau improvised a brief moment where he rubs the dog simply because the thing was creeping him out.
** Sestero ad-libbed the part about the hospital with the beaten up woman being on Guerrero Street (despite being aware that there is no hospital there) because it's where Wiseau's San Francisco apartment is located. Even though no one who saw the movie would ever make the connection, Wiseau was furious at Sestero for this...and used the take anyway because it was the best one they had.
* TroubledProduction: As detailed by ''Literature/TheDisasterArtist''. Yes, Tommy Wiseau really ''is'' that clueless, and yes, the movie really was as horrific to make as you would expect with him in charge.
* WhatCouldHaveBeen: According to ''Literature/TheDisasterArtist'', Wiseau was considering a vampire subplot.
* WordOfGod: According to Mr. Wiseau, Lisa's mother makes a full recovery from her breast cancer. He's also helpfully clarified that yes, Denny ''does'' have some sort of mental disorder, a detail that makes a lot of his scenes make more sense.