The Singer(2010)

Beshar, a famous singer, is summoned to perform at his country's dictator's birthday party. But on the way to the presidential palace, his car breaks down and he arrives late. He immediately faces the dictator's wrath, the first incident in a strange evening where the leader's tyranny will have dire consequences for some of the guests. Between forced cheerfulness and silent terror, everyone knows they are at the mercy of the mood of a grotesque host with unlimited power...