- Colbert Bump: It's received a lot more attention lately after being revealed as the favorite musical (and movie) of Lewis Lovhaug, the host of the wildly popular Atop the Fourth Wall, with him citing the important role it played in forming his personal sense of morality as a child.
- Spared by the Adaptation: King Pellinore, who gets killed off half-way through The Once and Future King, survives until the end of the movie and is with Arthur in his final battle.
For the TV Series:
- Dueling Shows: Game of Thrones and more loosely Merlin.
- Hey, It's That Guy!:
- Arthur is Anthony, Caius, and Gellert Grindlewald.
- Morgan is Vesper Lynd and Queen Sibylla.
- Merlin is Shakespeare and Mark Benford. He's also Voldemort's brother.
- Igraine is Susan. Or Dr. Peyton Driscolli.
- Guinevere's father is Sgt. Patrick Harper.
- King Lot is Mark Antony.
- Gawain is Archer and Rollo.
- Vivian is Chanto.
- Stillborn Franchise: In the season finale, the Round Table is established, and Mordred is conceived. Then the show was axed. The official reason was lead actors having prior commitments, but lower viewership and critical reception compared to contemporary shows like Game of Thrones didn't help.