Goofs:
Revealing mistakes: The stoker uses his hair pin to replace the missing pin on the throttle. However, when the pin is in place, the engineer pulls back on the throttle as though it were the brake (evident because the train starts breaking instantly giving no time to actually apply it). (more)

Trivia:
The film used 3D motion capture techniques to digitally record the physical performances of the actors before "skinning" them with their animated forms. All the children's roles were acted by adults using over-sized props to get the movement right. (more)

Filming Locations:
Culver Studios - 9336 W. Washington Blvd., Culver City, California, USA (more)

Quotes:
Hobo: That skirt you're chasing must've moved on ahead. We got to high tail it to the hog, pronto!
Hero Boy: The hog?
Hobo: The engine. The engine, you tenderfoot. We've got to make it before we hit Flat-Top Tunnel.
Hero Boy: Why?
Hobo: [sighs] So many questions. There's but one inch of clearance between the roof of this rattler and the top of Flat-Top Tunnel. Savvy?
(more)

Awards:
Nominated for 3 Oscars. Another 4 wins & 14 nominations (more)