- Cliché Storm: Definitely right up there, what with the Action Girl pairing off with the deliberately mentioned single lead, the boy they'd adopted turning out to be King Arthur's ancestor, among other things.
- Hilarious in Hindsight: The Game of Thrones alumni listed below should really include all those crows that appear.
- Retroactive Recognition: There are quite a few Game of Thrones characters in this movie:
- The new Roman Emperor is Jojen Reed and his father is Jorah Mormont.
- Alliser Thorne and Xaro Xhoan Daxos are Roman soldiers.
- Craster is the head of The Ninth Legion.
- The Untwist: Julius Caesar's sword has the inscription Caliburnus. Surprise, it's Excalibur!
- Ambrosinus is Merlin, also known as "Ambrosius" according to legend.