“Creed III” is causing fights in theaters during screenings in France and Germany. Brawls erupted during a dozen separate incidents in France over the weekend, causing some theaters to pull the flick. Some officials are afraid the viral footage of the fights could be part of a dangerous new social media challenge but others pointed out that these were isolated incidents out of more than 10,000 screenings. Have you ever been part of a brawl? What happened?