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Movies like Brinks: The Great Robbery (1976)

In this telling of the infamous 1950 robbery, James McNally is portrayed as the one gang member who maintains his silence in the face of extreme police pressure. When he is sent up to prison and sees the other gang members letting him take all the heat, he still doesn't come clean to the cops. He feels a loyalty to his best friend, who was also in on the crime. But what will his best friend choose to do?