Casque d'Or is a 1952 French historical-drama film directed by Jacques Becker. It is a Belle Époque tragedy, the story of an ill-fated love affair between characters played by Simone Signoret and Serge Reggiani. The story was loosely based on an infamous real-life love triangle between the prostitute Amélie Élie and the Apache gang leaders Manda and Leca, which was the subject of much sensational newspaper reporting during 1902.