Not that sort of Civil War movie unfortunately but a future conflict in the day after tomorrow theme. I hope America doesn't slide into that kind of conflict but it does seem possible.
Civil War is a 2024 dystopian film directed and written by Alex Garland. It follows a team of journalists traveling across the United States during a rapidly escalating Second American Civil War, which has engulfed the nation. The ensemble cast includes Kirsten Dunst, Wagner Moura, Cailee Spaeny, Stephen McKinley Henderson, Sonoya Mizuno, and Nick Offerman.