Longtime single friends Ben and Alice agree to be each other's respective plus one at every wedding they're invited to during a busy summer of wedding fever.
Unfortunately the movie Plus One is not yet available on HBO Max.
| Production | Neely Eisenstein | Casting |
| Art | Francesca Palombo | Production Design |
| Production | Lindsey Weissmueller | Casting |
| Editing | John Daigle | Editor |
| Sound | Leo Birenberg | Original Music Composer |
| Art | Travis Witkowski | Art Direction |
| Art | Katherine Reed | Set Decoration |
| Production | Ben Stiller | Executive Producer |
| Costume & Make-Up | Michelle Miller | Makeup Department Head |
| Production | Stu Pollard | Executive Producer |
| Production | John Short | Executive Producer |
| Sound | Chris Foster | Supervising Sound Editor |
| Production | Michael Schreiber | Executive Producer |
| Production | Jeff Chan | Producer |
| Production | Harris McCabe | Executive Producer |
| Visual Effects | Patrick Longstreth | Visual Effects Supervisor |
| Production | Greg Beauchamp | Producer |
| Production | Ross Putman | Producer |
| Production | Milan Chakraborty | Executive Producer |
| Production | Jackie Cohn | Executive Producer |
| Production | James Short | Executive Producer |
| Production | Nicholas Weinstock | Executive Producer |
| Production | Amee Dolleman | Executive Producer |
| Production | Deborah Liebling | Producer |
| Production | Jeremy Reitz | Producer |
| Production | Andrew Rhymer | Producer |
| Production | JP Quicquaro | Co-Producer |
| Crew | Guy Godfree | Cinematography |
| Production | David Devries | Co-Producer |
| Costume & Make-Up | Anaïs Castaldi | Costume Designer |
| Sound | Martin Courtney | Songs |
| Costume & Make-Up | Hannah Greenblatt | Costume Designer |
| Production | Rashonda Joplin | Co-Producer |
| Production | Lisa Steen | Co-Producer |
| Crew | Don Rhymer | In Memory Of |
| Sound | Ihor Kaniuk | Sound Re-Recording Mixer |
| Sound | Ihor Kaniuk | ADR Recordist |
| Sound | Anthony Kozlowski | Sound Mixer |
| Costume & Make-Up | Alexandra French | Key Makeup Artist |
| Sound | Nick Cox | Sound Re-Recording Mixer |
| Camera | Daniel Lynn | Camera Operator |
| Lighting | Ian Thomas | Gaffer |
| Directing | JP Quicquaro | First Assistant Director |
| Sound | Jorge García Bastidas | Sound Re-Recording Mixer |
| Sound | Luisa Hadley | Foley Artist |
| Production | Dan Weinstein | Executive Producer |
| Directing | Andrew Rhymer | Director |
| Directing | Jeff Chan | Director |
| Writing | Andrew Rhymer | Writer |
| Writing | Jeff Chan | Writer |
