Plea cop all you want... it is still a CLEAR contradiction in his character. Also, a glaring plot hole since we do not even know HOW he knew about the tape... we can only guess it's either by SHIELD or Bucky. But either way, it doesn't hint you in that he known all along. It's a forced written in part JUST to suddenly have one final fight. That entire last part of the film made no sense. Especially Zemo going through all that trouble to kill himself. Dude had access to the remaining Winter Soldiers in his control to tear up the Avengers which was ALREADY divided because of the registration act.... and was going to KILL HIMSELF anyway.
The whole thing is purely ignorant in how it was written.
He admitted himself that he was wrong for keeping it secret, to the point he even admitted he told himself it was to protect Tony but really he just did it to protect himself from having to deal with it.
It isn't a plot hole how he knew Bucky killed Tony's parents (that's what he knew, not that there might've been a tape of it) because he asked Bucky what Zemo wanted from him and that was the details of everything involving the mission where he killed Tony's parents.
Zemo literally said he didn't want more superhumans because the very existence of unaccountable superhumans is what led to the death of his family. And he was only willing to kill himself because he set out what he intended, to divide the Avengers indefinitely.
that's a pretty fukkin high mark man. If every action scene was judged by that scene, then we wouldn't watch action flicks anymore
that's still my favorite fight in the whole trilogy
