Adventure awaits 12 year old Brendan who must fight Vikings and a serpent god to find a crystal and complete the legendary Book of Kells. In order to finish Brother Aiden's book, Brendan must overcome his deepest fears on a secret quest that will take him beyond the abbey walls and into the enchanted forest where dangerous mythical creatures hide. Will Brendan succeed in his quest?
Unfortunately the movie The Secret of Kells is not yet available on HBO Max.
| Production | Didier Brunner | Producer |
| Production | Viviane Vanfleteren | Producer |
| Writing | Fabrice Ziolkowski | Writer |
| Sound | Bruno Coulais | Original Music Composer |
| Sound | Kila | Music |
| Directing | Nora Twomey | Director |
| Visual Effects | Tom Caulfield | Animation |
| Production | Paul Young | Producer |
| Crew | Roxanne Burchartz | Thanks |
| Crew | Sarah Carmody | Thanks |
| Crew | Eleni Chandrinou | Thanks |
| Crew | Jean-Paul Commin | Thanks |
| Crew | Louise Curran | Thanks |
| Crew | Caroline Cor | Thanks |
| Crew | Siebe Dumon | Thanks |
| Crew | Hans Everaert | Thanks |
| Crew | David Max Freedman | Thanks |
| Crew | Jean-Luc Fromental | Thanks |
| Crew | Fx Goby | Thanks |
| Crew | Aidan Harte | Thanks |
| Crew | Stéphanie Hugé | Thanks |
| Crew | Pierre Héros | Thanks |
| Crew | Jonas Kestemont | Thanks |
| Crew | Naomi Kestemont | Thanks |
| Crew | Nessa King | Thanks |
| Crew | Brendan McCarthy | Thanks |
| Crew | Brendan McCaul | Thanks |
| Crew | Barry O'Donoghue | Thanks |
| Crew | Claire Paoletti | Thanks |
| Crew | Karla Puttemans | Thanks |
| Crew | Philippe Reynaert | Thanks |
| Crew | Danielle Raaphorst | Thanks |
| Crew | Patrick Schoeters | Thanks |
| Crew | Sjef Scholte | Thanks |
| Crew | Rod Stoneman | Thanks |
| Crew | Inge Verroken | Thanks |
| Crew | Sara Wikler | Thanks |
| Crew | Mark Woods | Thanks |
| Production | James Flynn | Executive Producer |
| Production | Ivan Rouvreure | Executive Producer |
| Editing | Fabienne Alvarez-Giro | Editor |
| Art | Ross Stewart | Art Direction |
| Visual Effects | Dominique Gantois | 3D Animator |
| Visual Effects | Samuel Brasseur | 3D Animator |
| Visual Effects | Pierre Cambier | 3D Animator |
| Visual Effects | Olivia Carpentier | 3D Animator |
| Visual Effects | Francis Combes | 3D Animator |
| Visual Effects | Freek Quartier | 3D Animator |
| Visual Effects | Tom Van Gestel | 3D Animator |
| Production | Lydie Tedesco | Administration |
| Production | Serge Colibert | Administration |
| Production | Jérôme Larivet | Administration |
| Visual Effects | Fabian Erlinghäuser | Animation Supervisor |
| Visual Effects | Darko Belevski | Animation Supervisor |
| Visual Effects | Herle Maria Kühl | Animation Supervisor |
| Visual Effects | Marie-Laure Guisset | Animation Supervisor |
| Visual Effects | Benoît Féroumont | Animation Supervisor |
| Visual Effects | Lorraine Lordan | Animation |
| Visual Effects | Jeremy Purcell | Animation |
| Visual Effects | Jean Morel | Animation |
| Visual Effects | Lionel Marchand | Animation |
| Visual Effects | Caroline Piochon | Animation |
| Visual Effects | Barry Reynolds | Animation |
| Visual Effects | Jean-Baptiste Vendamme | Animation |
| Visual Effects | Alfredo Cassano | Animation |
| Visual Effects | Andrzej Radka | Animation |
| Visual Effects | Alessandra Sorrentino | Animation |
| Visual Effects | Dani Alcaraz | Animation |
| Visual Effects | David Bols | Animation |
| Visual Effects | Vanessa Crahay | Animation |
| Visual Effects | Michele De Feudis | Animation |
| Visual Effects | Joke Eycken | Animation |
| Visual Effects | Elie Klimis | Animation |
| Visual Effects | Corinne Kuyl | Animation |
| Visual Effects | Pascal Maoloni | Animation |
| Visual Effects | Rudi Mertens | Animation |
| Visual Effects | Pieter Vanluffelen | Animation |
| Visual Effects | Pascal Vermeersch | Animation |
| Visual Effects | Hermien Verstraete | Animation |
| Visual Effects | Eve Guastella | Key Animation |
| Art | Maya Merigeau | Background Designer |
| Art | Aurélie Bernard | Background Designer |
| Crew | Emmanuel Delétang | Executive Music Producer |
| Sound | Slim Pezin | Music Supervisor |
| Sound | Slim Pezin | Musician |
| Sound | Jean-Philippe Audin | Musician |
| Sound | Colm Ó'Snodaigh | Musician |
| Sound | Lance Hogan | Musician |
| Sound | Rossa Ó'Snodaigh | Musician |
| Sound | Eoin Dillon | Musician |
| Sound | Dee Armstrong | Musician |
| Production | Armelle Glorennec | Production Coordinator |
| Production | Eric Jacquot | Production Coordinator |
| Production | Anton Roebben | Production Coordinator |
| Production | Ross Murray | Executive In Charge Of Production |
| Production | Isabelle Truc | Executive In Charge Of Production |
| Production | Eric Goossens | Executive In Charge Of Production |
| Production | Edit Sándor | Production Manager |
| Production | Marcelo Fernandes De Moura | Production Manager |
| Sound | Sébastien Marquilly | Sound Designer |
| Sound | Sébastien Marquilly | Sound Editor |
| Sound | Sébastien Cortequisse | Sound Editor |
| Sound | Maxime Lefevre | Sound Engineer |
| Crew | Marcos Alessandro da Col | Systems Administrators & Support |
| Art | Jonas Hoffmann | Title Designer |
| Crew | Paul Lavergne | Executive Music Producer |
| Directing | Rémi Chayé | First Assistant Director |
| Camera | Rémi Chayé | Second Unit Director of Photography |
| Production | Camille Leganza | Executive In Charge Of Production |
| Production | Audrey O'Brien | Production Coordinator |
| Sound | Fabien Devillers | Sound Re-Recording Mixer |
| Sound | Alexandre Fleurant | Sound Editor |
| Directing | Tomm Moore | Director |
| Writing | Fabrice Ziolkowski | Screenplay |
