35mm film, Eastmancolour
A British animated fantasy film directed by George Dunning. It features the characters Thud and Blunder and is an instructional film made for the National Coal Board.
Thud and Blunder are a pair of clumsy miners who constantly get into trouble by ignoring safety rules.
Directed by: George Dunning
TV Cartoons for the National Coal Board and Central Office of Information
Produced by: George Dunning
Animation: Bill Sewell
British Animated Films, 1896-1985: A Filmography by Denis Gifford p.204 – credits