Continuity mistake: While Clarke and Lexa are kissing, Clarke removes the neck strap of Lexa's blouse. In a subsequent shot of them kissing, the strap is back on. It disappears again as they move towards the bed.
The 100 (2014)
1 mistake in Thirteen - chronological order
Starring: Eliza Taylor, Paige Turco, Marie Avgeropoulos, Thomas McDonell
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.