Human Desire - 1954
The "Central National" Railroad was portrayed by equipment and properties of the Southern Pacific Railroad. The locomotive and yard scenes were filmed on the Rock Island Railroad in El Reno, Oklahoma. RI Alco FA-1 #153 had the lettering covered on the side and a red panel added over the low nose herald. The "Yard Office" is actually the building housing the offices for the car repair facility in El Reno. The view after that is in the car repair shed north of the diesel shop in El Reno. The north side of the diesel shop is in the background. No. 717 that almost runs them over is RI Alco S-2 that was assigned to El Reno at least through the mid-60s.
Stock footage from all around the U.S. including ACL, PRR, and the ATSF! Pay attention to the backgrounds.