On a trip to her hometown, workaholic Ally reminisces with her first love Sean, and starts to question everything about the person she's become. Things only get more confusing when she meets Sean's fiancé, Cassidy, who reminds her of the person she used to be.
Unfortunately the movie Somebody I Used to Know is not yet available on HBO Max.
| Production | Wyck Godfrey | Producer |
| Writing | Alison Brie | Writer |
| Production | Ben Stillman | Producer |
| Production | Marty Bowen | Producer |
| Production | Michael Heimler | Producer |
| Production | Isaac Klausner | Producer |
| Directing | Dave Franco | Director |
| Writing | Dave Franco | Writer |
| Production | Leigh Kittay | Producer |
| Production | Laura Quicksilver | Executive Producer |
| Production | Alison Brie | Executive Producer |
| Production | Dave Franco | Executive Producer |
| Production | Bart Lipton | Executive Producer |
| Production | Teddy Schwarzman | Executive Producer |
| Camera | Brian Lannin | Director of Photography |
| Sound | Saunder Jurriaans | Original Music Composer |
| Art | Sean Roney | Art Direction |
| Art | Dan Maughiman | Set Dresser |
| Costume & Make-Up | Amanda Needham | Costume Design |
| Costume & Make-Up | Stephanie June Johnson | Makeup Artist |
| Art | Michelle L. Hall | Set Decoration |
| Costume & Make-Up | Laura Hill | Makeup Artist |
| Costume & Make-Up | Stacie Thomas | Makeup Artist |
| Costume & Make-Up | Jade Olson | Costume Supervisor |
| Editing | Ernie Gilbert | Editor |
| Costume & Make-Up | Jessica Needham | Makeup Department Head |
| Sound | Russell Topal | Sound Effects Editor |
| Sound | Danny Bensi | Original Music Composer |
| Sound | Trevor Gates | Supervising Sound Editor |
| Sound | Tim Gomillion | Sound Recordist |
| Art | Brandon Tonner-Connolly | Production Design |
| Sound | Andy Hay | Sound Re-Recording Mixer |
| Crew | Jacy Mairs | Health and Safety |
