So Civil War is excellent.
Easily the best of the Marvel films since the Avengers Assemble and a high watermark for anything that follows in it's footsteps. The Russo's deserve a huge amount of credit.
Everyone on their A game, an interesting plot and although the main villain doesn't particularly stand out, they have at least tried something more interesting with their storyline and motives.
Oh, and something for @Stevo985, due to the nature of the storyline and where Tony Stark is in his own personal story, there are practically zero one-liners or comedic lines from Iron Man. In fact, while we're on the subject of Iron Man, I have to give special kudos to RDJ. Without giving too much away, he's in quite a different place in this movie and Downey absolutely smashes it out of the park.
Couple of other things which i'll spoiler just in case: