Butler had been attending the premiere party of British director Guy Ritchie's film "Rock n Rolla" on October 7, 2008 when he got into a bust-up with a snapper.
Butler's reps said the Scot star was practically stalked by the papper snapper who pursued Butler through the LA streets.
His manager said Butler was forced to have his driver stop the car after the photographer sped through red lights and almost struck two pedestrians.
Superior Court spokeswoman Mary Hearn dismissed the charges at a hearing Tuesday after the actor completed community service.
Butler could have faced up to six months in jail if convicted. His attorney, Blair Berk, declined to comment.