One and then the other. Thanks, Ryan. We're going to turn to the red carpet ambush of brad Pitt. He was out for the L.A. Premiere of "Maleficent." When the attacker struck, and not for the first time.... See More
One and then the other. Thanks, Ryan. We're going to turn to the red carpet ambush of brad Pitt. He was out for the L.A. Premiere of "Maleficent." When the attacker struck, and not for the first time. Linzie Janis has the details. Reporter: Brad Pitt received an unwelcome surprise. The Los Angeles premiere of girlfriend Angelina Jolie's new movie "Maleficent." After serial prankster, vitaly sediuk struck him in the face. Security intervened as a violent scuffle turned out. You can see sediuk being taken by police in this video. Pitt was not injured in the attack. Jolie was in another area of the red carpet at the time. 25-year-old sediuk is a Ukrainian entertainment reporter, known for his aggressive antics with celebrities. Earlier this month, he made headlines when he crawled under America Ferrera's gown. What the hell is your problem, buddy? Reporter: In 2012, he tried to kiss will smith at the Moscow premiere of "Men in black 3." Sorry. Reporter: He's hugged Leo Dicaprio. Surprised Madonna with flowers at the Venice film festival. Even crashed Adele's grammy win last year. In the aftermath of that stunt, sediuk told "The Hollywood reporter," his antics are simply a joke. My purpose is to entertain. Reporter: But Los Angeles police are taking this incident very seriously. Arresting him on a misdemeanor charge. For "Good morning America," Linzie Janis, ABC news, New York.
This transcript has been automatically generated and may not be 100% accurate.