A lonely boy discovers a mysterious egg that hatches a sea creature of Scottish legend.
Unfortunately the movie The Water Horse is not yet available on HBO Max.
| Directing | Jay Russell | Director |
| Writing | Robert Nelson Jacobs | Screenplay |
| Writing | Dick King-Smith | Novel |
| Sound | James Newton Howard | Original Music Composer |
| Camera | Oliver Stapleton | Director of Photography |
| Editing | Mark Warner | Editor |
| Art | Tony Burrough | Production Design |
| Art | Simon Bright | Art Direction |
| Art | Brad Mill | Art Direction |
| Art | Pete Butters | Set Decoration |
| Art | Dan Hennah | Set Decoration |
| Costume & Make-Up | John Bloomfield | Costume Design |
| Crew | Erin Palmer | Sets & Props Artist |
| Lighting | Arun Ram-Mohan | Lighting Artist |
| Visual Effects | Hugo Dominguez | Visual Effects |
| Production | James Boyce | Production Runner |
| Production | Tim Haigh | Production Runner |
| Production | Daniel Marwick | Production Runner |
| Production | Shane Rangi | Production Runner |
| Production | Michelle Healey | Production Runner |
| Crew | Mark Barber | Compositor |
| Crew | Peter Connelly | Compositor |
| Crew | Areito Echevarria | Compositor |
| Crew | Sean Heuston | Compositor |
| Crew | Matt Holland | Compositor |
| Crew | Alexandra Lanzensberger | Compositor |
| Crew | Steve McGee | Compositor |
| Crew | Hannah Peirce | Compositor |
| Crew | Mark Richardson | Compositor |
| Crew | Christoph Salzmann | Compositor |
| Crew | John-Michael Bills | Compositor |
| Crew | Paul Conway | Compositor |
| Crew | Erich Eder | Compositor |
| Crew | Timothy Hey | Compositor |
| Crew | Robin Hollander | Compositor |
| Crew | Steve McGillen | Compositor |
| Crew | David Phillips | Compositor |
| Crew | Marc D. Rienzo | Compositor |
| Crew | Caterina Schiffers | Compositor |
| Crew | Cameron Smith | Compositor |
| Crew | Nick Booth | Compositor |
| Crew | Gareth Dinneen | Compositor |
| Crew | Geoff Hadfield | Compositor |
| Crew | Nicholas Hodgkinson | Compositor |
| Crew | Simon Jung | Compositor |
| Crew | Michael Lanzensberger | Compositor |
| Crew | Ben Morgan | Compositor |
| Crew | Dane Rapaport | Compositor |
| Crew | Frank Rueter | Compositor |
| Crew | Hamish Schumacher | Compositor |
| Crew | Steve Tizzard | Compositor |
| Crew | David Brunette | Compositor |
| Crew | Brett Dix | Compositor |
| Crew | Ed Hawkins | Compositor |
| Crew | Jan Kruse | Compositor |
| Crew | Helen Paul | Compositor |
| Crew | Paul Redican | Compositor |
| Crew | Karim Sahai | Compositor |
| Crew | Martin Simcock | Compositor |
| Editing | Joerg W. Bungert | Digital Colorist |
| Crew | Simon Clutterbuck | CG Supervisor |
| Crew | Christopher Horvath | CG Supervisor |
| Crew | Matthias Menz | CG Supervisor |
| Crew | Sergei Neushupou | CG Supervisor |
| Visual Effects | Lucas Putnam | VFX Editor |
| Visual Effects | Matt Holmes | VFX Editor |
| Production | Ian Jack | Accountant |
| Production | Sarah Wilson | Production Assistant |
| Visual Effects | Richard Frances-Moore | Animation Supervisor |
| Camera | Lee Bramwell | Camera Supervisor |
| Crew | Christian Rivers | Creative Consultant |
| Art | Gary Hunt | Sculptor |
| Art | Bill Hunt | Sculptor |
| Art | Greg Tozer | Sculptor |
| Art | Jamie Beswarick | Sculptor |
| Art | Shaun Bolton | Sculptor |
| Editing | Lynne Reed | Color Timer |
| Sound | Justin Reeve | Music Coordinator |
| Sound | Robyn Booker | Music Coordinator |
| Sound | Jim Weidman | Supervising Music Editor |
| Sound | David Olson | Music Editor |
| Sound | Jeff Atmajian | Orchestrator |
| Sound | Brad Dechter | Orchestrator |
| Sound | James Newton Howard | Orchestrator |
| Sound | Pete Anthony | Orchestrator |
| Sound | Jon Kull | Orchestrator |
| Sound | Chris Bacon | Orchestrator |
| Sound | Julia Newmann | Orchestrator |
| Crew | Heather Small | Post Production Assistant |
| Production | Rebecca Rowe | Post Production Coordinator |
| Sound | Peter Mills | Foley Editor |
| Sound | Robyn McFarlane | Foley Artist |
| Sound | Neil Aldridge | Sound Assistant |
| Sound | Chris Ward | ADR Recordist |
| Sound | Andy Thompson | ADR Recordist |
| Sound | Martin Kwok | Dialogue Editor |
| Sound | Polly McKinnon | Dialogue Editor |
| Sound | Nigel Stone | Dialogue Editor |
| Sound | Ray Beentjes | Supervising Dialogue Editor |
| Sound | Jason Canovas | Supervising Sound Editor |
| Sound | Dave Whitehead | Supervising Sound Editor |
| Sound | Dave Whitehead | Sound Designer |
| Crew | Rosemary Dority | Post Production Supervisor |
| Crew | Mark Hawthorne | Visual Effects Editor |
| Crew | Jenny Vial | Visual Effects Editor |
| Editing | James Meikle | Assistant Editor |
| Crew | Paul Gibson | Driver |
| Crew | Hayden Hardgrave | Driver |
| Crew | Rik Norton | Driver |
| Crew | Jason Sietsu | Driver |
| Crew | Gary Tudor | Driver |
| Crew | Greg Gibson | Transportation Coordinator |
| Crew | Aaron Gibson | Transportation Co-Captain |
| Crew | Kylie Gaudin | Transportation Co-Captain |
| Crew | Jaffray Sinclair | Picture Car Coordinator |
| Crew | Marie Maderson | Animal Wrangler |
| Crew | Pauline Campny | Animal Wrangler |
| Crew | Carol Ann Crawford | Dialect Coach |
| Crew | Edward Campbell | Dialect Coach |
| Production | Kevin Armstrong | Production Assistant |
| Production | Donna Harvey | Production Assistant |
| Production | Pip Longson | Production Assistant |
| Production | Matt Reid | Production Assistant |
| Production | Philippa Brophy | Production Assistant |
| Production | Seamus Kavanagh | Production Assistant |
| Production | Alana Martinero | Production Assistant |
| Production | Richard Thurston | Production Assistant |
| Production | Evie Forno | Production Assistant |
| Production | Liz Lane | Production Assistant |
| Production | Mike Minogue | Production Assistant |
| Production | Brenna Townshend | Production Assistant |
| Production | Janet Gillespie | Production Assistant |
| Production | Jamie Lawrence | Production Assistant |
| Production | Nigel Nally | Production Assistant |
| Production | Miranda Rivers | Extras Casting |
| Crew | Sue Henry | Craft Service |
| Crew | Billie Lusk | Craft Service |
| Directing | Sarah Rose | Second Assistant Director |
| Directing | Richard Matthews | Second Assistant Director |
| Directing | Bryon Darling | Third Assistant Director |
| Directing | Jacqui Pryor | Third Assistant Director |
| Camera | Pierre Vinet | Still Photographer |
| Crew | Amanda Brand | Unit Publicist |
| Art | Adam Ellis | Prop Designer |
| Art | Mark Hurtado | Storyboard Artist |
| Art | Manuel Plank-Jorge | Storyboard Artist |
| Art | Campbell Read | Graphic Designer |
| Art | Jacqueline Allen | Assistant Art Director |
| Art | Amber Richards | Set Dresser |
| Art | Chris Meder | Set Dresser |
| Art | Gillian West-Walker | Set Dresser |
| Art | Ben Whale | Set Dresser |
| Art | Mike Roberts | Set Dresser |
| Art | Reinaldo Puentes-Tucki | Art Department Coordinator |
| Art | Chris Hennah | Art Department Manager |
| Art | Philip Thomas | Set Designer |
| Art | Darryl Longstaffe | Set Designer |
| Art | Jim Priest | Set Designer |
| Art | Sam Genet | Sculptor |
| Art | Winiata Tapsell | Sculptor |
| Art | Brett Blenkin | Construction Foreman |
| Art | Derek Misseldine | Construction Foreman |
| Art | Colin Davidson | Construction Foreman |
| Art | Norman Willerton | Construction Manager |
| Production | David Sa'ena | Unit Manager |
| Production | Sebastian Marr | Payroll Accountant |
| Production | Marc Tyron | Assistant Accountant |
| Production | Anne-Marie Davenport | Assistant Accountant |
| Production | Fa'aulu Suluvave | Assistant Accountant |
| Production | Jonathan Harding | Assistant Accountant |
| Production | Linda Fenwick | Production Coordinator |
| Production | Kristian Eek | Assistant Production Coordinator |
| Production | Sarah Bain | Production Secretary |
| Production | Cindy Kahu | Production Secretary |
| Production | Melanie Turner | Travel Coordinator |
| Production | Gina Deakin | Location Coordinator |
| Production | Alicia Williams | Location Coordinator |
| Production | Peta Sinclair | Location Manager |
| Production | Roger Podge Preston | Assistant Production Manager |
| Crew | David Booth | Special Effects Technician |
| Crew | Paul Michael Davenport | Special Effects Technician |
| Crew | Jonny Grindlay | Special Effects Technician |
| Crew | Doug Falconer | Special Effects Technician |
| Crew | Iain Hutton | Special Effects Technician |
| Crew | Suen Harens | Special Effects Technician |
| Crew | Phil McLaren | Special Effects Technician |
| Crew | Mike McDonald | Special Effects Technician |
| Crew | Peter Zivkovic | Special Effects Technician |
| Crew | William Wallace | Special Effects Technician |
| Crew | Steve Ingram | Special Effects Coordinator |
| Sound | Mark Williams | Boom Operator |
| Camera | Dusty Millar | Camera Loader |
| Lighting | David Brown | Chief Lighting Technician |
| Lighting | Andrew Ayrton | Assistant Chief Lighting Technician |
| Lighting | Mark Jefferies | Rigging Gaffer |
| Costume & Make-Up | Georgia Lockhart-Adams | Makeup & Hair |
| Costume & Make-Up | Angela Mooar | Makeup & Hair |
| Costume & Make-Up | Natasha Lees | Makeup & Hair |
| Costume & Make-Up | Paul Booth | Costume Coordinator |
| Costume & Make-Up | Chantelle Bowkett | Costumer |
| Costume & Make-Up | Sophie Mae Mills | Costumer |
| Costume & Make-Up | Bec Johnston | Costumer |
| Costume & Make-Up | Paul Hambleton | Costumer |
| Costume & Make-Up | Emma Harre | Key Costumer |
| Costume & Make-Up | Bob Buck | Costume Supervisor |
| Costume & Make-Up | Pauline Bowkett | Assistant Costume Designer |
| Camera | Michael Vivian | Dolly Grip |
| Camera | Kayne Asher | Dolly Grip |
| Camera | Tony Keddy | Key Grip |
| Camera | Helen Ward | Second Assistant Camera |
| Camera | Philip A.T. Smith | Second Assistant Camera |
| Camera | Brenden Holster | First Assistant Camera |
| Camera | Andrew Stroud | First Assistant Camera |
| Camera | Peter McCaffrey | "A" Camera Operator |
| Camera | Peter McCaffrey | Steadicam Operator |
| Camera | Rob Marsh | "B" Camera Operator |
| Directing | Di Moffatt | Script Supervisor |
| Production | Averil Mawhinney | Production Accountant |
| Art | Nick Weir | Property Master |
| Art | Dan Hennah | Supervising Art Director |
| Crew | Justin B. Carter | Stunts |
| Crew | Peter Dillon | Stunts |
| Crew | Morgan Evans | Stunts |
| Crew | Peter Hassall | Stunts |
| Crew | Dave Muzzerall | Stunts |
| Crew | Steve Reinsfield | Stunts |
| Crew | Gemma Weston | Stunts |
| Crew | Rodney Cook | Stunts |
| Crew | Branko Dordevich | Stunts |
| Crew | Tarlor Hammond | Stunts |
| Crew | Aaron Lupton | Stunts |
| Crew | John Osborne | Stunts |
| Crew | Vincent Roxburgh | Stunts |
| Crew | Min Windle | Stunts |
| Crew | Tyrone Costelloe | Stunts |
| Crew | Steve Drage | Stunts |
| Crew | Winham Hammond | Stunts |
| Crew | Antonio Marsh | Stunts |
| Crew | Allan Poppleton | Stunts |
| Crew | Paul Shapcott | Stunts |
| Crew | Robert Young | Stunts |
| Crew | Mana Hira Davis | Stunts |
| Crew | Craig Dunn | Stunts |
| Crew | Isaac Hamon | Stunts |
| Crew | Tim McLachlan | Stunts |
| Crew | Shane Rangi | Stunts |
| Crew | Stuart Thorp | Stunts |
| Crew | Augie Davis | Stunt Coordinator |
| Camera | Stewart Whelan | First Assistant Camera |
| Visual Effects | Erik Winquist | Visual Effects Supervisor |
| Production | Robert Bernstein | Producer |
| Production | Charlie Lyons | Producer |
| Production | Barrie M. Osborne | Producer |
| Production | Douglas Rae | Producer |
| Visual Effects | Graham Binding | Senior Animator |
