
John and his class visit the Tower of London, where he loses his pet mouse. He falls asleep during a lesson on electricity, but with some help, he learns about it, invades the Tower, and saves his pet.

Mark Dightam
John

Robert Eddison
Nick

Helen Weir
Mrs Saunders

Brian Worth
Mr Saunders



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September 16, 1972
55m
5.7
Michael Powell
Emeric Pressburger
13

Children's Film Foundation (CFF)
N/A
Esmond Knight
Doctor

Laurence Carter
Schoolteacher

Patrick McAlinney
Supreme Beefeater

Lem Dobbs
Munro

Nigel Rathbone
Schoolboy (uncredited)
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