When David decides to bring a laughter on the sorrowful face of a young girl he has just crossed in a park, he happily ignores the amount of obstacles it will take him to succeed eventually in his goal.
Unfortunately the movie Once Upon a Time is not yet available on HBO Max.
| Directing | Annick Christiaens | Director |
| Art | Annick Christiaens | Art Direction |
| Camera | Jelle Jansens | Focus Puller |
| Crew | Nina Payrhuber | Script |
| Directing | Veerle Van der Veken | First Assistant Director |
| Camera | Rocky Grispen | Grip |
| Production | Michael van Den Eynde | Executive Producer |
| Lighting | Tobias Spierenburg | Gaffer |
| Sound | Dimitri Daggelinckx | Sound |
| Writing | Annick Christiaens | Screenplay |
| Editing | Oscar Spierenburg | Editor |
