Panic on french TV show at "Cannes Film Festival" - Blank shots fired

It appears that a man fired two blank shots during the TV show " Grand Journal de Canal+" live on May the 17th, 2013 in Cannes Festival. Christoph Waltz (Inglorious Basterds, the Great Gatsby) was invited on the stage. According to the press, a man fired two shots in the air with a gun loaded with blank bullets. He also had a fake grenade in his hand. The police intervened and the man was arrested immediately. No one was injured. A commercial starts at the end on the video.