Most of the subway scenes were filmed on a four thousand-foot-long set built to resemble a typical four-track New York City subway trunkline. It included three stations, all of which were built as local stops with the platforms on the outside of the outer tracks. Included were I-beams between each track, spaced five feet apart just as they are in New York City. The ceiling, however, was much higher than on any actual New York City subway line.

Film

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