Mike Epps, who played black Doug in The Hangover, was involved in a fight at a nightclub in Hollywood recently.  Cops rushed to the scene after two groups got into an altercation(one of them being his entourage) and someone pulled out a gun and fired a warning shot.  Epps was seen fleeing from the scene and was there celebrating his birthday.  Luckily, nobody was hurt but cops want to speak with Epps about the incident.