England, December 1926. Although her personal life is in tatters, the famous writer Agatha Christie decides to leave everything behind to help unravel an unsolved murder committed on a train six years ago, unable to imagine the disproportionate consequences that such a selfless act will cause.
Unfortunately the movie Agatha and the Truth of Murder is not yet available on HBO Max.
| Directing | Terry Loane | Director |
| Writing | Tom Dalton | Screenplay |
| Production | Emily Dalton | Executive Producer |
| Production | Tom Dalton | Executive Producer |
| Production | Chamoun Issa | Executive Producer |
| Production | Brett Wilson | Producer |
| Production | Michelle Walsh | Production Manager |
| Production | Rachel McClure | Production Coordinator |
| Directing | Kirsty Auld | Script Supervisor |
| Directing | Theo Herron | First Assistant Director |
| Directing | Afric Gray | Second Assistant Director |
| Directing | Elle Hesnan | Third Assistant Director |
| Crew | Chloe Finlay | Floor Runner |
| Art | Ana Magarão | Art Direction |
| Directing | Chamoun Issa | Second Unit Director |
| Costume & Make-Up | Fiona Goggin | Costume Supervisor |
| Lighting | Terry Maskell | Gaffer |
| Camera | Rick Griffiths | Grip |
| Production | Brenda Gough | Location Manager |
| Costume & Make-Up | Alison Cahill | Makeup Artist |
| Costume & Make-Up | Leanne Brown | Makeup Artist |
| Crew | Donal O'Farrell | Stunt Coordinator |
| Camera | Helen Sloan | Still Photographer |
| Crew | Claire Robinson | Post Production Supervisor |
| Sound | Will McConnell | Sound Re-Recording Mixer |
| Sound | Chris Woodcock | Sound Recordist |
| Production | Carla Stronge | Casting Director |
| Costume & Make-Up | Marion McCarthy | Costume Designer |
| Costume & Make-Up | Maria Moore | Makeup Designer |
| Costume & Make-Up | Maria Moore | Hair Designer |
| Sound | Andrew Simon McAllister | Original Music Composer |
| Art | Ashleigh Jeffers | Production Design |
| Editing | Claire Pringle | Editor |
| Editing | Zsófia Tálas | Editor |
| Camera | Damien Elliott | Director of Photography |
| Production | Sebastian Cardwell | Executive Producer |
| Crew | Andrew Simon McAllister | Compositor |
