 The Chicago Elevated stop used in the sequence where Snyder chases  Hooker is the South Third Street station. There is still a stop  there, on the current green line, but the building shown in the film  was destroyed by a fire in 1974 and replaced in 1976. Though shown  painted white in the movie, the old station probably would still  have been the original natural brick color in the 1930s. The A/B  signs on the platform are also an anachronism: skip stop service was  not introduced until after WWII.