The Northwestern Pacific Railroad was featured in films, used from backgrounds to on-board filming, most notably is Alfred Hitchcock's Shadow of a Doubt, which was filmed in downtown Santa Rosa, California in the summer of 1942, using the stone depot and railroad yard as a background.
The film was scored by Dimitri Tiomkin, his first collaboration with Hitchcock (the others being Strangers on a Train, I Confess and Dial M for Murder).
No Doubt | The White Shadow | Robotech: The Shadow Chronicles | DJ Shadow | The Shadow | Shadow Cabinet | Batman: Shadow of the Bat | Moonlight Shadow | The Shadow Out of Time | Storm Shadow | The Shadow Line | Shadow Project | Shadow Leader of the House of Commons | Shadow Chancellor of the Exchequer | The Shadow over Innsmouth | Shadow Theatre | Shadow Raiders | Shadow on the Wall | Shadow of the Thin Man | Shadow Home Secretary | Pandemonium Shadow Show | Ender's Shadow | Doubt: A Parable | Vincent Black Shadow | Twin Shadow | The Shadow of Your Smile | The Shadow of Weng-Chiang | The Shadow of the Wind | The Shadow Line (TV series) | The Salmon of Doubt |
A live-action host (Robert Emmett O'Connor) opens with a disclaimer about the nature of the cartoon, namely, that the short is meant to "prove beyond the shadow of a doubt that crime does not pay."