Roman teenager, Atti is forced to join the Roman army when one of his clever schemes falls foul of Emperor Nero. He is sent to "miserable, cold, wet Britain" where "the natives are revolting - quite literally". Things go from bad to worse when Atti is captured by Orla, a feisty teenage Celt desperate to prove herself as a warrior.
Unfortunately the movie Horrible Histories: The Movie - Rotten Romans is not yet available on HBO Max.
| Art | Margaret Spohrer | Art Direction |
| Art | Colin Bayliss | Property Master |
| Crew | Michael Byrch | Stunts |
| Crew | Paul Howell | Stunts |
| Crew | David Newton | Stunts |
| Crew | Dominic Preece | Stunt Coordinator |
| Crew | Adam Smith | Stunts |
| Production | Rose Garnett | Executive Producer |
| Production | Melissa Hardinge | Executive Producer |
| Production | Geraldine Atlee | Executive Producer |
| Production | Simon Williams | Executive Producer |
| Production | Vaishali Mistry | Executive Producer |
| Production | Claudia Bluemhuber | Executive Producer |
| Production | Florian Dargel | Executive Producer |
| Production | Joe Oppenheimer | Executive Producer |
| Production | Iole Lucchese | Executive Producer |
| Production | Julian Bird | Executive Producer |
| Costume & Make-Up | Kate Benton | Makeup Designer |
| Costume & Make-Up | Kate Benton | Hair Designer |
| Directing | Matthew Gallagher | First Assistant Director |
| Production | Ashton Radcliffe | Location Manager |
| Crew | Alistair Hopkins | Post Production Supervisor |
| Production | Jackie Wetherill | Production Accountant |
| Art | Margaret Spohrer | Supervising Art Director |
| Directing | Natalie Scicluna | Script Supervisor |
| Camera | Oliver Hadlow-Martin | Digital Imaging Technician |
| Sound | Richie Webb | Original Music Composer |
| Sound | Matt Katz | Original Music Composer |
| Sound | Iain Farrington | Original Music Composer |
| Directing | Dominic Brigstocke | Director |
| Writing | Jessica Swale | Writer |
| Production | Richard Bradley | Executive Producer |
| Production | Nancy Bray | Line Producer |
| Production | Will Clarke | Producer |
| Production | Andy Mayson | Executive Producer |
| Production | Caroline Norris | Producer |
| Production | Giles Pilbrow | Co-Producer |
| Production | Giles Pilbrow | Executive Producer |
| Production | Bradley Quirk | Executive Producer |
| Production | Mike Runagall | Executive Producer |
| Camera | John Sorapure | Director of Photography |
| Editing | Nigel Williams | Editor |
| Production | Colin Jones | Casting |
| Art | Heather Burton | Production Design |
| Art | Andy Grogan | Set Decoration |
| Costume & Make-Up | Ros Little | Costume Designer |
| Production | Joanna Osborn | Production Manager |
