Trivia for
Doom (2005) More at IMDbPro »

• The character of Sarge (played by Dwayne Johnson) is an homage to Master Sergeant Thomas Kelly, one of the main characters from the video game Doom³ (2004) (VG).
  
  
• The names of scientists Dr. Todd Carmack and Dr. Willits are references to Todd Hollenshead, John Carmack and Tim Willits, co-owners of id Software, and developers of the Doom game and its sequels, including Doom³ (2004) (VG) upon which this movie is based.
  
  
• "Pinky Demon" is a monster from the game and has organic front legs but mechanical rear legs.
  
  
• Dwayne Johnson was offered the lead role of John Grimm but chose the role of Sarge because he thought it was more interesting.
  
  
• Vin Diesel was offered the lead role but turned it down
  
  
• A nuclear explosion sequence on the Mars facility was filmed but not used in the final cut.
  
  
• Some scenes were cut because of the intense and graphic violence.
  
  
• The first person shooter (FPS) sequence took about 14 days to shoot.
  
  
• When Sarge uses the severed hand to open the advanced weapons armory, the computer voice (and subtitles) say, "Welcome, Dr. Patricia Tallman." The character is named in the credits as Dr. Hillary Tallman. Patricia Tallman is best known by fans of the horror and zombie genres as Barbara, the lead character in Tom Savini's 1990 Night of the Living Dead remake. Much like the inclusion of John Carmack's name, this is a subtle insider reference, but one that is arguably more likely to be noticed than the name of ID Software's infamous co-founder Carmack.
  
  
• The locker the BFG is stored is designated IDKFA. This is the in-game cheat code that will give the player all keys, full weapons, and ammo.
  
  
• The film's setting is an archaeological dig at "Olduvai" on Mars. Earth's Olduvai Gorge contains some of the earliest human and hominid (pre-human) remains and artifacts. This was the setting for the opening scenes of 2001: A Space Odyssey (1968).
  
  
• The beating heart in the jar and the beeping accompanying it is reminiscent of the logo used by id Software (the developer of the Doom video games) shown at the beginning of many of their games.
  
  
• WILHELM SCREAM: Several times when Pinky is attacked by one of the creatures.
  
  
• Rosamund Pike turned down the role of Rita Skeeter in Harry Potter and the Goblet of Fire (2005) to work on both this movie and Pride & Prejudice (2005).
  
  
• Two working (vibrating) BFG's were created for the film. Both we're kept by Dwayne Johnson.
  
  

• SPOILER: During the end credits, when the cast members' names appear on the screen, the only ones not to be shot/blown up are the only ones which survive in the movie.
  
  

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