This documentary tells the story of the creation and cultural impact of the world's most famous Christmas carol, composed in 1818 in Salzburg, Austria, and since then translated into about 140 languages.
| Camera | Daniel Ronacher | Drone Cinematographer |
| Camera | Raphael Planer | Drone Cinematographer |
| Camera | Thomas Schorn | Camera Operator |
| Sound | Simon Hornett | Sound |
| Lighting | Michael Wagner | Lighting Technician |
| Lighting | Dave Armstrong | Lighting Technician |
| Lighting | Christoph Ribitsch | Lighting Technician |
| Lighting | Bernhard Somera | Lighting Technician |
| Visual Effects | Robin Aristorenas | Animation |
| Crew | Carola Hofstätter | Makeup Effects |
| Crew | Eva Hauswirth | Makeup Effects |
| Editing | Thomas Schorn | Color Grading |
| Directing | Hannes Michael Schalle | Director |
| Production | Hannes Michael Schalle | Producer |
| Production | Marlene Beran | Producer |
| Editing | Stefan Resch | Editor |
| Art | Stefan Resch | Art Direction |
| Writing | Hannes Michael Schalle | Writer |
| Writing | Alistair Audsley | Writer |
| Crew | Guenther Mitterhuber | Post-Production Manager |
