There might be some inspiration from real - life debates about security and freedom. In the movie, there are arguments about controlling superheroes for the greater good. In real - life society, there are discussions about sacrificing some freedoms for security. However, it's still a very fictionalized take. The characters and their powers are all made - up, and the story is mainly to engage the audience in a superhero context.
One possible real - life inspiration could be political differences. Just as in the movie the superheroes have different views on things like registration, in real life people can have strong political differences. But that's a very loose connection as the movie is mainly a fictional superhero story.
Some real - life aspects that could potentially have inspired 'Captain America Civil War' might be related to group dynamics and loyalty. In the movie, the superheroes split into two groups based on their beliefs. In real - life, we often see groups form around certain ideas and sometimes have internal conflicts. But overall, it's important to note that the movie is a highly fictionalized account. The superheroes, their extraordinary abilities, and the grand battles are all part of the Marvel's fictional universe and not directly based on real - life events.