After breaking up with her boyfriend, Lillian moves in with married couple Julia and Don only to overhear them arguing in the night. The front door slams as Don moves out, and the following days sees Lillian, selfish and irresponsible, having to earn her keep by cooking for Julia, a reclusive, distrustful writer who rarely emerges from her room. Though communicating largely through notes, the odd couple gradually forge a bond and help one another to negotiate the foibles, phobias and obstacles that have long hindered their happiness.
Unfortunately the movie Good Posture is not yet available on HBO Max.
| Production | Claire Peberdy | Production Supervisor |
| Production | Dolly Wells | Executive Producer |
| Production | Rhiana Yazzie | Production Coordinator |
| Art | Charlotte Abbott | Art Direction |
| Production | Ken Farrington | Unit Production Manager |
| Sound | Heather Christian | Original Music Composer |
| Camera | Jack Berner | Camera Production Assistant |
| Art | Elliot C Thompson | Art Department Assistant |
| Camera | Josef Orlandi | Best Boy Grip |
| Lighting | Josef Orlandi | Rigging Gaffer |
| Crew | Laura Pettitt | Unit Publicist |
| Production | Bobby Baumann | Production Assistant |
| Camera | Marco Andre | First Assistant Camera |
| Camera | Ryan McCluney | Key Grip |
| Camera | Jeong Park | Still Photographer |
| Production | Ken Farrington | Location Manager |
| Camera | Hannah Berg | Second Assistant Camera |
| Camera | Austin Henderson | Digital Imaging Technician |
| Production | Kevin Higgins | Production Assistant |
| Crew | Adrianna Allenby | Post Production Assistant |
| Sound | Nick Baldock | Supervising Sound Editor |
| Directing | Kirsten Kearse | Script Supervisor |
| Visual Effects | Bence Varga | Digital Compositor |
| Costume & Make-Up | Alison Wadsworth | Key Hair Stylist |
| Costume & Make-Up | Arielle Perez | Hairstylist |
| Production | Chris Miller | Production Assistant |
| Directing | Alexis Self | Script Coordinator |
| Art | Oliver Alex | Art Department Assistant |
| Costume & Make-Up | LuAnn Claps | Hair Department Head |
| Costume & Make-Up | Arielle Perez | Makeup Artist |
| Costume & Make-Up | Alison Wadsworth | Key Makeup Artist |
| Production | Corey Baglino | Production Assistant |
| Production | Amando Galasso | Key Set Production Assistant |
| Sound | Mark Hinebrook | Sound Recordist |
| Production | Chris Reed | Production Accountant |
| Camera | Jose Vargas | Assistant Camera |
| Costume & Make-Up | Rebecca Summerfield | Assistant Costume Designer |
| Costume & Make-Up | Emmanuelle Martin | Costume Designer |
| Directing | Dan Rosenhanst | Third Assistant Director |
| Costume & Make-Up | LuAnn Claps | Makeup Department Head |
| Lighting | J.C. Calubayan | Gaffer |
| Editing | Austin Henderson | Assistant Editor |
| Production | Andrew Grossardt | Production Assistant |
| Sound | Simon Gershon | Sound Designer |
| Sound | Ben Carr | Sound Re-Recording Mixer |
| Sound | Adrian Furdui | Supervising Dialogue Editor |
| Sound | Patrick Singer | Foley Artist |
| Editing | Berta Valverde | Online Editor |
| Sound | Kristiana Udre | Foley Artist |
| Editing | Max Horton | Colorist |
| Sound | James Matthews | Foley Editor |
| Visual Effects | Maria Poker | VFX Artist |
| Sound | Olivia Celeste Barry | Assistant Sound Editor |
| Editing | Natalia Jaeger | Online Editor |
| Visual Effects | Daniel Waterman | Visual Effects Supervisor |
| Sound | Adrianna Allenby | Music Coordinator |
| Sound | Fred Myers | Sound Effects Editor |
| Editing | Filipe Fernandes | Online Editor |
| Editing | Pat Wintersgill | Digital Intermediate Producer |
| Visual Effects | Lee Watson | Visual Effects Producer |
| Sound | Tanay Nambiar | Foley Mixer |
| Sound | Vicki Williams | Music Supervisor |
| Crew | Rebecca Davies | Post Production Supervisor |
| Directing | Dolly Wells | Director |
| Production | Chris Reed | Executive Producer |
| Production | James Norrie | Executive Producer |
| Production | Jamie Adams | Producer |
| Production | Ken Farrington | Co-Producer |
| Production | Fabio W. Silva | Associate Producer |
| Directing | Mattheau O'Brien | First Assistant Director |
| Writing | Dolly Wells | Writer |
| Editing | Adelina Bichis | Editor |
| Production | Ken Farrington | Line Producer |
| Production | Maggie Monteith | Producer |
| Production | Bob Portal | Executive Producer |
| Directing | Monet Monique Rumford | Second Assistant Director |
| Camera | Ryan Owen Eddleston | Director of Photography |
