The filmmaker is, who has won three Oscar nominations for "Rita Hayworth and Shawshank Redemption" , "Fargo" and "Life of the Dalai Lama" . Since shooting the scene of a boxing match cannot be divided into separate scenes like shooting action stunts in ordinary movies, the camera must be close to the shooting target and a large number of handheld cameras are used. Before shooting, Diggins asked the actors to help determine the use of light and color.
Due to the age of the film's story, many buildings at that time have been completely unrecognizable, so the crew must restore. Unable to enter the state prison for filming, the crew captured some key sights of Rahway and Trenton prisons like a guerrilla. The huge five-story cell in the film was designed by production designer Philip Rosenberg, and Carter's cell, which has appeared many times, was built based on the cell of Trenton State Prison
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