In this 1955 aerial the NYC main line runs left to right, and Fletcher Rd is visible on the left. What appears to be the water tower located at the track pans is clearly visible. I've driven along here quite a few times, never knew this was there!
Probly a good bet at least some of the footage in the video at a curve in the main line was shot from Fletcher Rd looking west.
Old topo maps show the interurban ran parallel to the NYC along here, passing just on the south side of the water tower's location (guessing the tower came after the interurban was gone)