Some movie clips from YouTube:
First, a promotional film from the New York Central called "Flight of the Century," featuring the 20th Century Limited in 1935, before streamlining. Sound quality is horrid, but I like the music selection at about 7:00, which alternately contrasts with bouncing engine cabs and complements the ride in the Pullmans. And at about 10:00, the music changes to "Dance of the Hours," which many of us know as a novelty tune about summer camp, "Hello Muddah, Hello Faddah:"
http://www.youtube.com/watch?v=afqkdViyJvE
More Hudson action:
http://www.youtube.com/watch?v=i0AGYIVjNIg&feature=related
http://www.youtube.com/watch?v=RXr6RZCIR2A&feature=related
Other NYC steam:
http://www.youtube.com/watch?v=Oa7iVYo7uto&feature=related
And of course, we couldn't forget the streamliners of the the Milwaukee Road:
http://www.youtube.com/watch?v=Cph7KwNMon8
Have fun.
there is also another great old n.y.c. film on you tube call the STEAM LOCOMOTIVE and its all about the HUDSON and only the HUDSON
good luck john t brooklyn ny