I think the Civil War movie is not going to be much like the comic past base concept but for what they have to work with I don't think that's a bad thing. We'll likely see the lower level repercussions of the Civil War in shows like Agents of Shield but fought at the top level of the Avengers I think a smaller cast will make the fact that everyone is turning on each other a lot more emotionally impactful because we can focus on how the war is effecting a limited number of people to a deep degree rather than a large number of people to a shallow degree.

What I really hate about the Marvel movies is how they seem to have an obsession with creating villains that have the same abilities as the heroes. First two iron man movies had evil iron men. Hulk had abomination. Captain America had the Winter Soldier. Ant Man had Yellow Jacket. Really the Thor movies are the only ones that seem to have unique bad guys.

Also kind of annoyed that they skipped first generation Ant Man and Wasp especially because Wasp was one of the driving forces behind the forming of the Avengers and Hank Pym more or less designed the Avengers Mansion with Stark's budget. But then I suppose portraying an abusive husband who proceeds to go mad and turn homicidal in the name of justice as a hero isn't really good for Marvel's image. Still would have made the MCU a bit more real, just like if they'd included Hawkeye's deafness.