YMMV / Britannia

• Big-Lipped Alligator Moment: In season 2, the Outcast suddenly has a series of nightmares where he has romantic feelings for Cait. After a whole episode of awkwardness between the pair, this is never mentioned again after the episode it's brought up in. Bear in mind, Nikolaj Lie Kaas (the Outcast) is, at 46, more than twice the age of Eleanor Winifred Cox (18).
• Funny Moments: When Hella reappears in episode 5 of season 3, and nobody is happy to see her.
  Phelan: Oh, no.
  Antedia: Met before?
  Phelan: Briefly. She kidnapped me.
  Cait: She buried me alive.
  Divis: Not that it's a competition, but I had to stitch my own lung back in with fresh bear guts.
  Antedia: I like her already.
• Retroactive Recognition: Trystan Gravelle went from being an extra called Derog to Pharazôn from The Lord of the Rings: The Rings of Power.
• They Wasted a Perfectly Good Plot: Although the series has its own fans as it is, there are some viewers who believe that, with the high budget and cast Britannia received, the producers could have made a great straight historical adaptation of the conquest of Britannia instead of a story with magic and fantasy. It doesn't help that several of the pre-release promotional materials were actually marketing the series as if it was a historical chronicle without any fantastic elements, leading people to get confused at the final product once they could watch it.