A vacuum repairman moonlights as a street musician and hopes for his big break. One day a Czech immigrant, who earns a living selling flowers, approaches him with the news that she is also an aspiring singer-songwriter. The pair decide to collaborate, and the songs that they compose reflect the story of their blossoming love.
Unfortunately the movie Once is not yet available on HBO Max.
| Writing | John Carney | Screenplay |
| Production | Martina Niland | Producer |
| Camera | Tim Fleming | Director of Photography |
| Production | David Collins | Executive Producer |
| Directing | John Carney | Director |
| Sound | Glen Hansard | Original Music Composer |
| Costume & Make-Up | Tiziana Corvisieri | Costume Design |
| Sound | Markéta Irglová | Original Music Composer |
| Sound | Robert Flanagan | Sound mixer |
| Editing | Paul Mullen | Editor |
| Art | Tamara Conboy | Production Design |
| Sound | Glen Hansard | Songs |
| Sound | Markéta Irglová | Songs |
| Art | Riad Karim | Art Direction |
| Sound | Michelle Fingleton | Sound Editor |
| Production | Maureen Hughes | Casting Director |
| Production | Yvonne Burke | Production Coordinator |
| Production | Con Cremins | Production Accountant |
| Production | Holly Carey | Production Executive |
| Production | Steven Davenport | Location Manager |
| Production | Evelyn O’Neill | Assistant Location Manager |
| Art | Anthony Nugent | Standby Property Master |
| Directing | John Burns | First Assistant Director |
| Directing | John O'Donoghue | Second Assistant Director |
| Camera | John Carney | Camera Operator |
| Camera | Tim Fleming | Camera Operator |
| Camera | Ron Coe | Camera Operator |
| Camera | Tanya Doyle | Assistant Camera |
| Sound | Paul Naughton | Boom Operator |
| Directing | Peggy Brazil | Script Supervisor |
| Costume & Make-Up | Una Towell | Wardrobe Supervisor |
| Costume & Make-Up | Barbara Conway | Key Makeup Artist |
| Costume & Make-Up | Conor McAllister | Key Hair Stylist |
| Camera | David Cleary | Still Photographer |
| Crew | Jim Duggan | Post Production Supervisor |
| Sound | David Donohue | Music Consultant |
| Sound | Niall Brady | Supervising Sound Editor |
