Patzer

At the start of the film, the passenger train on which Johnny Mansell is travelling is headed by a British Railways Western Region 4-6-0 locomotive. When the train pulls into Rawborough Station a few minutes later, it is headed by a British Railways London Midland Region 4-4-0 locomotive.

The robbery takes place at night and wouldn't have been discovered until the following morning, yet Johnny is reading a report of the robbery in the morning paper.