Thud and Blunder in "Knock-Off Time"
- İl: 1964
- Ölkə: United Kingdom
- Janr: Animation
- Studiya: National Coal Board Film Unit, BFI, TVC London
- Açar söz: safety, coal mining, miners, civil disobedience, collier, psa, public information film
- Direktor:
- Oyuncu: