Trivia / Doctor Who S32 E2 "Day of the Moon"

• California Doubling: The sequence where Canton chases River in New York City was shot in central Cardiff, while the scenes set in Area 51 were filmed in a large disused hangar in South Wales.
• Completely Different Title:
  • The French title is "The Impossible Astronaut, Part 2".
  • The Japanese title is "The Silent Invasion".
• Recycled Set: The control room set used from "The Lodger" was reused the for the Silence base.
• What Could Have Been:
  • Incorporating Richard Nixon into the plot was, of course, an example of Real Life Writes the Plot; Steven Moffat thought about using a generic president like in "The Sound of Drums", given his dislike of Nixon. However, he decided to keep him around given the rest of the historically accurate setting and thought it would be interesting if the Doctor has to work with him.
  • When Amy confronts Canton, three silence were supposed to be watching them, but this was left out.
• Working Title: Look Behind You.

---