Hear That Train a Comin' (2006) is a Documentary film that follows meet the crew of the Union Pacific Challenger No. 3985, the largest and most powerful steam engine in the world. This colorful documentary is a behind-the-scenes look at the conductors, engineers and mechanics who keep this fickle train running, an engaging history of steam power, and a scenic tour the Great Plains -- from Cheyenne, Wyo., through Denver and across Nebraska to the Omaha headquarters of the Union Pacific. Hear That Train a Comin' is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of documentary movies may also want to explore similar titles below.