• Warning: Spoilers
    Occurrence in "Vengeance" -Stargate Atlantis S03E19-

    At 0:13:23/0:43:31, Major/Lt. Colonel John Sheppard says to the team:

    "Alien. The movie Alien. They use the air-shafts to move around the ship."

    Dr. Rodney McKay replies to Major/Lt. Colonel John Sheppard via interruption of him:

    "And then they systematically killed the entire crew one by one. Thank you for bringing that up."

    Major/Lt. Colonel John Sheppard then corrects Dr. Rodney McKay:

    "They didn't kill them all."

    This correction spoken by Major/Lt. Colonel John Sheppard indicates the carefulness of all who work on the fine program. To help in the only way that I can, I add that the movie in which there was more than one alien which traversed through the air-shafts was titled "Aliens" and was directed by James Cameron. In "Alien, "directed by Ridley Scott, there was one alien who "used the air-shafts to move around the ship" (Binder, 2007). I really enjoyed this episode and the continuity that writer Carl Binder and director Andy Mikita brought to it.

    Binder, C. (Writer). (2007, January 29 ). Vengeance (Science fiction series episode). In Stargate Atlantis. Washington: Metro-Goldwyn-Mayer Inc.