Goofs

The goods train has 4 different engines on it during the course of its journey,

The film could allow viewers to fear that the only way to stop a runaway steam train is for a psychotherapist to climb over the tender to talk to the driver.

In fact, catch points are fitted on railways to stop runaway trains by diverting them into ballast. This was demonstrated by the more accurate plot in Thomas the Tank Engine when the boy who lit the fire played with the regulator, and Thomas couldn't stop himself from breaking through his engine shed doors, but a catch point stopped him from getting onto the main line.

Interesting locations for railway enthusiasts but a laughable plot, with the driver saying the "communication cord" wouldn't work because he had turned off the steam.

He would have had to tamper with the automatic vacuum brake on each carriage to stop the system working. The system was designed to stop such tampering.

It was a fail safe braking system where anyone pulling the cord would admit air into the vacuum pipe, which would apply the brakes throughout the train.

Bizarrely no passenger tried pulling the "cord".