Fritz Weineck is portrayed as a bachelor. In real life he was married to Mela Dietze since 1921 and had a child.
In the movie Fritz Weineck is killed in the front next to his mother by his former friend Georg. In real life he was killed in the back on chest height by one of the 50 random shots done by the police. Also he died instantly while in the movie he survived longer after the shot.
In the first movie scene it is mentioned that Fritz Weineck was killed with 8 of his comrades in 1925. In real life 10 people were killed that day, including Weineck. Four people died instantly, the others died on the way to the hospital.
Fritz Weineck's mother's name was Friederike, not Anna.