Children with their musical instruments are able to drive lazy Martin out of the furnace and punish him for his laziness.
Unfortunately the movie Kalamajka is not yet available on HBO Max.
| Sound | Zdeněk Jonák | Original Music Composer |
| Directing | Hermína Týrlová | Director |
| Writing | Hermína Týrlová | Screenplay |
| Camera | Míla Bráníková | Director of Photography |
| Editing | Zdeněk Stehlík | Editor |
| Production | Dušan Schaffer | Production Manager |
| Sound | Štěpán Koníček | Conductor |
| Writing | Hermína Týrlová | Story |
| Writing | Josef Menzel | Screenplay |
| Art | Zdeněk Miler | Art Designer |
| Visual Effects | Jan Dudešek | Animation |
| Visual Effects | Václav Dobrovolný | Animation |
