In Scotland 1874, Jack is born on the coldest day ever. Because of the extreme cold, his heart stops beating. The responsible midwife in Edinburgh finds a way to save him by replacing his heart with a clock. So he lives and remains under the midwife's protective care. But he must not get angry or excited because that endangers his life by causing his clock to stop working. Worse than that, when he grows up, he has to face the fact he cannot fall in love because that too could stop his delicate heart.
Unfortunately the movie Jack and the Cuckoo-Clock Heart is not yet available on HBO Max.
| Directing | Mathias Malzieu | Director |
| Directing | Stéphane Berla | Director |
| Writing | Mathias Malzieu | Writer |
| Production | Nadia Khamlichi | Executive Producer |
| Production | Jeremy Burdek | Producer |
| Production | Anton Roebben | Producer |
| Production | Adrian Politowski | Executive Producer |
| Sound | Didier Lozahic | Sound Re-Recording Mixer |
| Art | Frederic Perrin Fredleew | Production Design |
| Editing | Soline Guyonneau | Editor |
| Sound | Loïc Gourbe | Sound Recordist |
| Production | Gilles Waterkeyn | Executive Producer |
| Production | Coralie Rose | Casting |
| Production | Eric Goossens | Producer |
| Sound | Hortense Bailly | Dialogue Editor |
| Sound | Julie Tribout | Sound |
| Production | Virginie Besson-Silla | Producer |
| Sound | Matthieu Dallaporta | Sound Re-Recording Mixer |
