Bloody Friday (1972) on Netflix

Plot summary

A courthouse breakout frees Heinz Klett in the middle of his trial. He sets his mind on robbing a local bank, intending the job to be the largest the country has seen. The take is meant to reach seven figures and pay for a new start on the other side of the world. Klett gathers a store of powerful guns taken from an American army outpost. His loyal protégé Christian Hofbauer signs on and, with hesitance, brings in his young girlfriend and her brother, who has gone absent without leave from the army. The four of them work through a plan their leader believes cannot go wrong.