Major development work had taken place in the late 1950s to make Gatwick Airport a more viable rival to Heathrow. Many scenes in the latter half of this film were shot there, in an attempt to showcase the airport's increased capability.
Released in its native UK as "The Breaking Point".
The van taking the money is not an "armored car" and it's a robbery, not a swindle.
Actor Brian Cobby was the voice on the telephone of the speaking clock in the United Kingdom from 1985 to 2007.