French philosopher and author Bernard-Henri Levy, right, holds a microphone after being struck in the face with a pie by leftist activists during the presentation of his documentary with Serbian movie director Goran Markovic, in Belgrade, Serbia, Wednesday, May 10, 2017. Bernard-Henri Levy, known for his criticism of Serbian nationalist policies during the 1990s Balkan wars, is in Belgrade for the showing of his film about the Kurds' battle against the Islamic State group. (AP Photo)