Thud and Blunder in "Knock-Off Time"
- Година: 1964
- Земја: United Kingdom
- Genанр: Animation
- Студио: National Coal Board Film Unit, BFI, TVC London
- Клучен збор: safety, coal mining, miners, civil disobedience, collier, psa, public information film
- Директор:
- Улоги: