Photographer Maggie learns her ex-boyfriend/ex-singing partner is in the wedding she is working. Tensions run high until they sing together, remembering how good they were as a duo.
Unfortunately the movie In the Key of Love is not yet available on HBO Max.
| Directing | Clare Niederpruem | Director |
| Writing | Julie Foldesi | Story |
| Writing | Joe Ricci | Story |
| Writing | Kevin Duda | Story |
| Writing | Joe Ricci | Teleplay |
| Sound | Genevieve Vincent | Music |
| Production | Penny Perry | Casting |
| Production | Candice Elzinga | Casting |
| Editing | Thom Kyle | Editor |
| Art | Brian Davie | Production Design |
| Camera | Pieter Stathis | Director of Photography |
| Production | Jonathan Shore | Supervising Producer |
| Production | Trevor McWhinney | Producer |
| Production | Jamie Goehring | Producer |
| Production | Shawn Williamson | Producer |
| Production | Kevin Duda | Executive Producer |
| Production | Maclain Nelson | Executive Producer |
| Crew | Landon Jackle | Stunt Coordinator |
| Crew | Heidi Ford | Stunt Double |
| Crew | Chris Olson | Stunt Double |
| Production | Paula S. Kyan | Production Manager |
| Directing | Kevin Speckmaier | First Assistant Director |
| Directing | Natalie Fiteni | Second Assistant Director |
| Camera | Collin Morrison | "A" Camera Operator |
| Camera | Leonardo Harim | "B" Camera Operator |
| Camera | Quinton Lai | First Assistant "A" Camera |
| Camera | Jessica Lo | First Assistant "B" Camera |
| Camera | Chris Horniblow | Second Assistant "A" Camera |
| Camera | Bobby Demian | Second Assistant "B" Camera |
| Camera | Jason Kwan | Digital Imaging Technician |
| Camera | Kailey Schwerman | Still Photographer |
| Directing | Jessica L. Randall | Script Supervisor |
| Sound | Roderick Matte | Sound Mixer |
| Sound | Yared Gebrekidan | Boom Operator |
| Art | Sarah Stapleton | Art Direction |
| Art | Shannon Bertelson | Set Decoration |
| Art | Christa Macgregor | Assistant Set Decoration |
| Art | Tim Lanham | Lead Set Dresser |
| Art | Charlene Irani | Set Dresser |
| Art | Juliana Zwierciadlowska-Rymer | Set Dresser |
| Art | Lucas Marincelj | Set Dresser |
| Art | Toby Eslake | Set Dresser |
| Art | Dylan Townley Smith | Set Dresser |
| Art | Daniel Cipilinsky | Property Master |
| Art | Coralee Draginda | Assistant Property Master |
| Art | Chris Crawford | Props |
| Costume & Make-Up | Rosa Terracciano | Key Hair Stylist |
| Costume & Make-Up | Alana Olson | Assistant Hairstylist |
| Costume & Make-Up | Francesca Cervellin | Key Makeup Artist |
| Costume & Make-Up | Emily Walsh | Assistant Makeup Artist |
| Costume & Make-Up | Patricia Hargreaves | Costume Designer |
| Costume & Make-Up | Kelsey Baran | Assistant Costume Designer |
| Costume & Make-Up | Brenda McDermid | Costume Set Supervisor |
| Costume & Make-Up | Debbie Tallam | Truck Supervisor |
| Costume & Make-Up | Alexandra Hartle | Truck Supervisor |
| Production | Joey Setter | Production Coordinator |
| Production | Sean Blatchford | Assistant Production Coordinator |
| Directing | Ross Langill | Third Assistant Director |
| Directing | Adam McCarthy | Third Assistant Director |
| Lighting | Trevor D. Gray | Gaffer |
| Lighting | Rob Hamilton | Best Boy Electric |
| Crew | Livio Santsantarossa | Generator Operator |
| Camera | Sean Rooney | Key Grip |
| Camera | Keith Granger | Best Boy Grip |
| Camera | Steve Mieszkalski | Dolly Grip |
| Camera | Cholo Medina | Grip |
| Camera | Kendrick Hew | Grip |
| Camera | Scott Vanderhook | Grip |
| Production | Danny McWilliams | Location Manager |
| Production | Steve Hearn | Assistant Location Manager |
| Visual Effects | Jak Osmond | Special Effects Supervisor |
| Crew | Dean Fitzpatrick | Transportation Coordinator |
| Crew | Derek Keillor | Transportation Captain |
| Crew | Reggie Singh | Transportation Captain |
| Crew | Sean Hanlin | Security Coordinator |
| Production | Stephanie Boeke | Background Casting Director |
| Production | Martina Smyth | Casting Assistant |
| Production | Trudi Thorwaldson | Production Accountant |
| Production | Aidan Heatley | Assistant Accountant |
| Production | Gretchen Heatley | Payroll Accountant |
| Crew | Jonathan Shore | Post Production Supervisor |
| Production | Darlene Choo | Post Production Coordinator |
| Editing | Sean Flotre | Assistant Editor |
| Editing | Augustin Escoffier | Assistant Editor |
| Editing | Lorne Wright | Colorist |
| Editing | Chris Boettcher | Online Editor |
| Editing | Allan Pinvidic | Online Editor |
| Visual Effects | Brett Keyes | Visual Effects Supervisor |
| Sound | May Guimarães | Sound Re-Recording Mixer |
| Sound | Kevin Belen | Sound Re-Recording Mixer |
| Sound | Kevin Morales | Sound Re-Recording Mixer |
| Sound | Adam Sharpe | Sound Supervisor |
| Sound | Ken Cade | Sound Designer |
| Sound | Kevin Barron | Sound Editor |
| Sound | Leon Campbell | Foley Editor |
| Sound | Matt Dawson | Dialogue Editor |
| Sound | Francisco Frial | Foley Mixer |
| Sound | Daniel Cardona | Foley Mixer |
| Sound | Elaine Stef | Foley Artist |
| Sound | Shane Shemko | Foley Artist |
| Sound | Tony Rodney | Assistant Sound Editor |
| Sound | Joselyn Hernandez | Assistant Sound Editor |
| Sound | Shayla Swanson | Music Editor |
| Sound | Valerie Biggin | Music Supervisor |
| Sound | Francesca Cammarata | Music Coordinator |
