First of all, it's a given that this is no piece of art, being a Marvel movie. There won't be deep thinking or any thinking at all for that matter. You're expected to see action, explosions, awesome shiny creatures flying around and more explosions. My vote of 7/10 is after taking the genre into consideration.

Why 7? Let's start with a perfect score and move down from there.

I usually disconnect, unplug and turn off my education when I watch these movies, because I want to be a child again and enjoy them. However, sometimes my inner child decides to be smart and a little "why?" or "how?" slips out and ruins the movie a bit. Here's how it lost 3 points: Civil War is an adaptation from the comic books, but the title didn't keep the meaning. Marvel has been taking end-of-the- world super interesting scenarios and reducing the scale a lot. See Age of Ultron, for example, instead of a machine that could control most of the modern world and use it to give dawn to a new age, an age where humanity has been brought to its knees (*gasp* Age of Ultron...), we get James Spader making jokes and failing at being moderately menacing. It was barely the week of Ultron. Similarly, Civil War was a war that put humanity versus humanity and invoked a real moral dilemma that reached to everyone, turning family members and lovers against each other. It was a matter of people's own nature being possibly harmful to others. It had meaning. It reached you. The first main difference from the comic to the movie, in my opinion, is that the number of affected people is very different. Instead of millions of people that you and I can relate to, there's a dozen characters. The second one is the nature of what makes these characters special. In the comic, it was their powers, something that was part of them. There was no option to quit. They had to sign, and have their identities and powers made public, or fight. In the movie, most of the characters have no powers, just equipment. They have the option to pass it to someone, which also makes the act of signing an agreement kinda futile.

This was a story where the Hulk would have mattered and he wasn't there. Marvel moved the Earth trying to get Spider-man because he was crucial to the plot, but in the end he was there just for the action scenes. No impact at all. Thor's perspective (not human) would have been important, but he wasn't there.

So, it failed at being a Civil War movie.

On the other hand, there are so many characters that you forget who the main character is. It definitely did not feel like a Captain America movie (ok by me, more explosions).

In the end, we could have had another Captain America movie and/or we could have had an awesome Civil War movie. In my opinion, it failed, because it tried to be both. It succeeded in being something... different (who cares? explosions) I think minus 3 points for the disappointment is fair enough. It only disappointed, because there was an expectation. If you refrain from comparing to the comic or to previous Cap movies (or to anything that makes sense), it can be an entertaining movie. Again, explosions and jokes.