From The Grindhouse Cinema Database
- The film was created in a piecemeal fashion over five years, with many of the sets rebuilt after they had been torn down at one point to make way for other work.
- Jack Nance kept his hair in the same frizzy style for the duration of filming - almost five years.
- David Lynch had a lot of trouble getting financial assistance from the AFI, because the script was only 20 pages long. He received a grant from AFI but after about 3 years of production, ran out of money.
- The pattern on the floor of the lobby of Henry's house is the same as pattern on the floor of the poet's house in Jean Cocteau's "Orpheus".
- The mutant baby was apparently created from the embalmed fetus of a calf, although David Lynch has never confirmed this or described how he articulated it. During filming when he watched rushes, he would even go so far as to have the projectionist cover his eyes when takes with the baby were playing so that no one would know how it was made.
- The soundtrack album was dedicated "...to The Man In the Planet's Sister". The Man In the Planet was played by Jack Fisk, brother of Lynch's then-wife, Mary Fisk.
- Was reportedly one of filmmaker Stanley Kubrick's very favorite films.
- Over the five years of filming, Jack Nance's only request as far as comfort or entertainment went was "a room and a chair".
- To date David Lynch has refused to say a word about the film in any kind of public forum, preferring that viewers make up their own minds about what it all means. The only comment he’s made is on the 2000 DVD release of the film. He states that no one has come close to the true meaning of the film.
- Shooting was so sparse that at one point, Henry opens a door, and Jack Nance ages 18 months upon entering the room.
- Cinematographer Herb Cardwell died after the shooting at the age of 35 in his sleep. Fred Elmes replace Cardwell after about 2 years of production, there was a 4 week transition period.
- Sissy Spacek was brought on the set by Jack Fisk (the Man in the Planet), and held the slate during his scenes. They later married.
- Lynch says he took out the "women tied to the bed" scene because it was too disturbing.
- At one point Terrence Malick tried to help raise money for the film by screening it for his financial backer. The backer walked out, calling the movie "bullshit".
- Premiere voted this movie as one of "The 25 Most Dangerous Movies".
- After completing the film, the "Embalmed Calf" used for the baby was buried by Lynch in an undisclosed location. At the wrap party, they had a mock wake for it.
- David Lynch has referred to Eraserhead as his "most spiritual movie".
- Though only given a theatrical release as a "midnight movie," a number of Hollywood A-list directors--among them 'Mel Brooks (I)' and George Lucas--saw the film and were impressed by it. Brooks offered Lynch the chance to direct The Elephant Man (1980) and Lucas offered direction of Star Wars: Episode VI - Return of the Jedi (1983) based on their reactions to this film.
- According to David Lynch, an unsung hero in the promotion of this film is director John Waters, who's own films Pink Flamingos (1972) and Female Trouble (1974) played the midnight circuit at the same time. While promoting his own films, Waters would often mention Eraserhead as one of his own favorite films, urging views to go see it.