• Enforced Method Acting: See Mistaken for Gay in the main page, and then realize that that scene was improvised by Bill Murray; Ned's reaction was largely genuine. Stephen Tobolowsky (who plays Ned) is a great character actor, and did plenty of improvisation in the film, too.
    • As is usual for Bill Murray, when Rita slaps him, she really does hit him hard. Not surprising, since all of the abuse Murray suffered from Carol Kane in Scrooged were real as well.
  • Hey, It's That Guy!: Besides the obvious ones, two minor characters you might not have recognized are Brian Doyle-Murray (Bill Murray's real life brother, also known as Captain K'nuckles) playing the mayor, and Stephen Tobolowsky (Sandy from Glee) as Ned Ryerson.
  • Hey, It's That Voice!: The young bride-to-be/bride in the final loop is Hynden Walch, aka Teen Titans' Starfire! Glorious!
  • Retroactive Recognition: The groom who receives the Wrestlemania tickets? Michael Shannon.
  • Shrug of God: How long Phil spent in the loop. Harold Ramis said it was 10,000 years, while Bill Murray mentioned they discussed it and decided on "about ten years".
  • Throw It In: After Phil smashes the radio, it keeps playing "I Got You, Babe". However, that wasn't supposed to happen. It was such a wonderful, dark moment that Ramis left it in.