Revealing mistake: While Echo, Monty, Harper, Bellamy and Emori are heading back down to earth, you'll notice that Emori's face tattoo is on her right side of her face rather than her left.
The 100 (2014)
1 revealing mistake in season 5 - chronological order
Starring: Eliza Taylor, Paige Turco, Marie Avgeropoulos, Thomas McDonell
Revealing mistake: At the river to cross over to Mt Weather, the vine used to swing across the river is just a standard rope, camouflaged. You can see it best when Finn recovers it after Jasper has jumped.
Remember Me - S2-E9
Kane: Peace with the grounders is the only way we'll survive.
Abby: Oh, I don't think they know what 'peace' is.
Kane: The Commander does.
Abby: She's a child. They're being led by a child.
Kane: So are we.