Corrected entry: In the scene where the cable is being placed around the police car axle, the noise from doing it is drowned out by noise from a nearby railroad. The noise is actually that of a steam locomotive doing switching duties - and steam locomotives disappeared from the railroads that would have gone through Modesto (Santa Fe and Southern Pacific) by the mid-50's.
Narniaman
30th Jul 2011
Correction: The railroad sounds heard are diesel, not steam. The horn heard in the scene is from a Nathan p3 air horn, a style found on diesel locomotives, predominately the Southern Pacific, Santa Fe scarcely used them. The sounds are accurate for the time frame represented in the film.