With a wedding to plan, an engagement party to throw, and an inn full of surprise guests, the road to true love for Olivia and Mick takes a few unexpected twists and turns
Unfortunately the movie Wedding March 4: Something Old, Something New is not yet available on HBO Max.
| Camera | Allister Foster | Still Photographer |
| Production | Vince Balzano | Associate Producer |
| Production | Susie Belzberg Krevoy | Executive Producer |
| Production | Doran S. Chandler | Supervising Producer |
| Production | Peter DeLuise | Executive Producer |
| Production | Jamie Goehring | Producer |
| Production | Eric Jarboe | Executive Producer |
| Production | Amy Krell | Executive Producer |
| Production | Brad Krevoy | Executive Producer |
| Production | Kevin Leslie | Producer |
| Production | Nathaniel Lyman | Associate Producer |
| Production | Linda L. Miller | Executive Producer |
| Production | B.F. Painter | Supervising Producer |
| Production | Amanda Phillips | Executive Producer |
| Production | Michael Shepard | Supervising Producer |
| Production | Jonathan Shore | Supervising Producer |
| Production | Jimmy Townsend | Executive Producer |
| Directing | Kevin Leslie | First Assistant Director |
| Directing | Peter DeLuise | Director |
| Writing | Robin Bernheim Burger | Writer |
| Writing | Richard Manning | Writer |
| Writing | David Golden | Writer |
| Writing | Tracy Andreen | Writer |
| Production | Jackie Lind | Casting |
| Sound | Terry Frewer | Music |
| Editing | Kelly Herron | Editor |
| Art | Sean Kirkby | Production Design |
| Camera | Ryan McMaster | Director of Photography |
| Production | Robyn Wiener | Associate Producer |
| Production | Jack Wagner | Executive Producer |
| Production | Robyn Wiener | Production Manager |
| Directing | Paul Turner | First Assistant Director |
| Directing | David Heimbecker | Second Assistant Director |
| Art | Wenke Li | Art Direction |
| Costume & Make-Up | Odessa Bennett | Costume Designer |
| Art | Trevor Johnston | Set Decoration |
| Art | Slade Young | Property Master |
| Costume & Make-Up | Pamela M. Athayde | Key Makeup Artist |
| Costume & Make-Up | Amber Snow | Key Hair Stylist |
| Production | Joey Setter | Production Coordinator |
| Directing | Anita Reilly McGee | Script Supervisor |
| Production | Christina Ollson | Location Manager |
| Production | Trudi Thorwaldson | Production Accountant |
| Production | Stephanie Boeke | Extras Casting |
| Crew | B.F. Painter | Post Production Supervisor |
| Editing | Lauren Mainland | First Assistant Editor |
| Editing | Caleb Henry | First Assistant Editor |
| Editing | Joseph K. Vance | Assistant Editor |
| Editing | Fred W. Richters | Online Editor |
| Editing | Joy Lin | Online Editor |
| Editing | Claudio Sepulveda | Colorist |
| Visual Effects | Brett Keyes | Visual Effects Supervisor |
| Sound | Tony Gort | Sound Designer |
| Sound | Aaron Olson | Dialogue Editor |
| Sound | Bonnie Lambie | ADR Mixer |
| Sound | Rick Senechal | Foley Editor |
| Sound | Don Harrison | Foley Artist |
| Sound | Ian Mackie | Foley Artist |
| Sound | Joe Watts | Sound Re-Recording Mixer |
| Sound | Craig George | Sound Re-Recording Mixer |
| Sound | Sean Szutka | Assistant Sound Editor |
| Sound | Meagan Carsience | Music Editor |
| Sound | Valerie Biggin | Music Supervisor |
