Battle of the Godfathers(1973)

Overview:

Hamburg business man Otto Westermann is also the boss of organized crime in the city. His reign as godfather is in danger, though, as an ambitious Sicilian mafioso enters the fray. His goal is clear and simple: he wants to take over Hamburg. But Westermann isn't as easy to defeat as the Sicilian expects. And soon Hamburg is on the verge of a bloody mob war.