In darkest rural Ireland, ex-boxer Douglas 'Arm' Armstrong has become the feared enforcer for the drug-dealing Devers family, whilst also trying to be a good father to his autistic five-year-old son, Jack. Torn between these two families, Arm's loyalties are truly tested when he is asked to kill for the first time.
Unfortunately the movie Calm with Horses is not yet available on HBO Max.
| Costume & Make-Up | Emma Scott | Makeup Designer |
| Production | Seán Burke | Location Manager |
| Directing | Mike Hayes | First Assistant Director |
| Directing | Conor Flannery | Third Assistant Director |
| Production | Rory Gilmartin | Co-Producer |
| Production | Gemma O'Shaughnessy | Line Producer |
| Directing | Benjamin Crowe | First Assistant Director |
| Writing | Colin Barrett | Short Story |
| Crew | Jennifer Eriksson | Post-Production Manager |
| Production | Emer O'Shea | Production Executive |
| Visual Effects | Brooke Lyndon-Stanford | Visual Effects Supervisor |
| Production | Ed Guiney | Producer |
| Costume & Make-Up | Clodagh McInerney | Prosthetic Makeup Artist |
| Art | Jim Grindley | Property Master |
| Sound | Benjamin John Power | Original Music Composer |
| Directing | Zoe Tough | Additional Second Assistant Director |
| Art | Barry Davenport | Props |
| Art | John McHale | Assistant Art Director |
| Costume & Make-Up | Linda Gannon | Key Hair Stylist |
| Art | Damien Gordon | Art Department Trainee |
| Production | Cecily Colahan | Production Manager |
| Art | Sean Lyons | Set Dresser |
| Sound | Nik Stojkov | Production Sound Mixer |
| Visual Effects | Dheeraj Chaudhary | Visual Effects Compositor |
| Crew | Peter Pedrero | Stunt Coordinator |
| Art | Sandra Szpytko | Set Decoration |
| Crew | Tricia Perrott | Post Production Supervisor |
| Directing | David Kennedy | Second Assistant Director |
| Directing | Denis Fitzpatrick | Additional Second Assistant Director |
| Camera | Fiona Graham | Second Assistant Camera |
| Production | Filiz-Theres Erel | Line Producer |
| Costume & Make-Up | Roisin Copeland | Assistant Hairstylist |
| Art | Anthony Brannigan | Painter |
| Costume & Make-Up | Anna Bass | Hairstylist |
| Art | Ian McCaffrey | Storyboard Artist |
| Sound | David Giles | Production Sound Mixer |
| Sound | Oscar Schlicht | Assistant Foley Artist |
| Costume & Make-Up | Stephanie Kavanagh | Makeup Trainee |
| Production | Iman Kiashemshaki | Producer |
| Directing | Claire T. Cassidy | Assistant Director Trainee |
| Directing | Dani Wall | Assistant Director Trainee |
| Art | Fletcher Jarvis | Art Direction |
| Art | Sarah McLoughlin | Standby Art Director |
| Art | Charlotte Ball | Set Dresser |
| Sound | Matis Rei | Supervising Sound Editor |
| Costume & Make-Up | Mary Fox | Costume Supervisor |
| Sound | Juan Montoto Ugarte | Production Sound Mixer |
| Art | Oleg Loginov | Opening Title Sequence |
| Production | Chandra Mouley Atray | Head of Production |
| Lighting | Eimear Ennis-Graham | Lighting Technician |
| Costume & Make-Up | Anya Jane Magee | Daily Wardrobe |
| Lighting | John Creagh | Best Boy Electrician |
| Production | Connie McCool Duncan | Post Production Coordinator |
| Directing | Áine Máire Ní Tháibhís | Script Supervisor |
| Lighting | Paul Wilcox | Electrician |
| Production | Mairéad Campbell | Extras Casting |
| Editing | Matthew Troughton | Colorist |
| Crew | Branislav Martinak | Stunt Double |
| Camera | John Connon | Key Grip |
| Production | Damon Crane | Location Manager |
| Sound | David Crane | ADR Recordist |
| Sound | Mark Henry | ADR Recordist |
| Sound | Tapio Liukkonen | Foley Artist |
| Production | Swapnali Mumbarkar | Line Producer |
| Production | Michelle Giovanni | Casting Associate |
| Visual Effects | Roshni Maranat | Visual Effects Producer |
| Camera | Rodrigo Bruzoni | First Assistant "B" Camera |
| Crew | Paul Cullen | Transportation Captain |
| Camera | Daniel Kelly | Assistant Camera |
| Crew | Clwyd Edwards | Executive Visual Effects Producer |
| Lighting | Jack Madden | Electrician |
| Lighting | Howard Morton | Electrician |
| Camera | Leighton Spence | First Assistant Camera |
| Production | Emily Leach | Production Manager |
| Production | Katherine Pomfret | Production Executive |
| Crew | Kevin Nolan | Special Effects Coordinator |
| Crew | Donal O'Shea | Stunts |
| Camera | Aidan Gault | "B" Camera Operator |
| Lighting | Zik Udenze | Electrician |
| Camera | Francesca Zucchini | Camera Trainee |
| Costume & Make-Up | Paul Keady | Costume Standby |
| Production | Nicky Earnshaw | Head of Production |
| Lighting | Jazz Bhalla | Gaffer |
| Costume & Make-Up | Mathew Stevenson Wright | Assistant Costume Designer |
| Crew | Lubomir Misak | Stunts |
| Camera | Si Bell | Additional Director of Photography |
| Camera | Dylan Knapp | Digital Imaging Technician |
| Sound | Adrian Sandu-Yota | ADR Mixer |
| Crew | Norman Kelly | Stunt Driver |
| Lighting | Addo Gallagher | Gaffer |
| Camera | Alfie Hollingsworth | Camera Trainee |
| Lighting | Leo Olesker | Electrician |
| Sound | Phil Canning | Music Supervisor |
| Crew | Boyd Rankin | Armorer |
| Crew | Joseph Mackenzie | Post Production Assistant |
| Production | Ruben Pereira | Assistant Location Manager |
| Visual Effects | Justin Cornish | Visual Effects Supervisor |
| Visual Effects | Shane Jaeger-Collins | Visual Effects Coordinator |
| Crew | Neil Chapelhow | Stunts |
| Crew | Branislav Martinak | Fight Choreographer |
| Production | Sabrina Salome | Post Production Coordinator |
| Camera | Mick O'Rourke | Steadicam Operator |
| Production | Gabby King | Casting Assistant |
| Production | Michael Fassbender | Executive Producer |
| Writing | Joseph Murtagh | Writer |
| Directing | Nick Rowland | Director |
| Production | Daniel Emmerson | Producer |
| Art | Tara O'Reilly | Art Direction |
| Editing | Matthew Tabern | Editor |
| Art | Annalisa Andriani | Set Decoration |
| Production | Kate Glover | Co-Producer |
| Production | Shaheen Baig | Casting |
| Editing | Nicolas Chaudeurge | Editor |
| Costume & Make-Up | Sharon Long | Costume Design |
| Production | Theo Barrowclough | Associate Producer |
| Camera | Piers McGrail | Director of Photography |
| Production | Mike Runagall | Executive Producer |
| Production | Conor McCaughan | Executive Producer |
| Production | Will Clarke | Executive Producer |
| Art | Damien Creagh | Production Design |
| Editing | Andonis Trattos | Editor |
| Costume & Make-Up | Anna Bass | Makeup Artist |
| Sound | Matis Rei | Sound Re-Recording Mixer |
| Costume & Make-Up | Edwina Kelly | Makeup Artist |
| Sound | Morgan Muse | Supervising Dialogue Editor |
