I truly think there's gonna be one thing that's kills my interest in the movie and that's Buckys and Caps relationship. I never quite bought their relationship in the first avenger. Winter soldier was basically a one sided relationship. And in civil war it looks like Bucky just wants to dissappear but cap won't let him.
It kind of reminds me of what happened in BvS. I couldn't buy bats and supes conflict so when the did fight I really didn't care.
If Bucky really did do all these bad things why is cap still trying to protect him? If the reason isn't legit it's going to be hard for me to enjoy.
This video right here really shows the dynamic of their relationship from the first movie into the second movie.
This Marvel Supercut shows it even more for Civil War.