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.
| Directing | Dave Franco | Director |
| Writing | Alison Brie | Writer |
| Writing | Dave Franco | Writer |
| Production | Marty Bowen | Producer |
| Production | Wyck Godfrey | Producer |
| Production | Isaac Klausner | Producer |
| Production | Ben Stillman | Producer |
| Production | Leigh Kittay | Producer |
| Production | Michael Heimler | Producer |
| Production | Dave Franco | Executive Producer |
| Production | Alison Brie | Executive Producer |
| Production | Teddy Schwarzman | Executive Producer |
| Production | Laura Quicksilver | Executive Producer |
| Production | Bart Lipton | Executive Producer |
| Sound | Danny Bensi | Original Music Composer |
| Sound | Saunder Jurriaans | Original Music Composer |
| Camera | Brian Lannin | Director of Photography |
| Editing | Ernie Gilbert | Editor |
| Art | Brandon Tonner-Connolly | Production Design |
| Art | Sean Roney | Art Direction |
| Art | Michelle L. Hall | Set Decoration |
| Costume & Make-Up | Amanda Needham | Costume Design |
| Costume & Make-Up | Laura Hill | Makeup Artist |
| Costume & Make-Up | Stephanie June Johnson | Makeup Artist |
| Costume & Make-Up | Jessica Needham | Makeup Department Head |
| Costume & Make-Up | Stacie Thomas | Makeup Artist |
| Art | Dan Maughiman | Set Dresser |
| Sound | Trevor Gates | Supervising Sound Editor |
| Sound | Tim Gomillion | Sound Recordist |
| Sound | Andy Hay | Sound Re-Recording Mixer |
| Sound | Russell Topal | Sound Effects Editor |
| Costume & Make-Up | Jade Olson | Costume Supervisor |
| Crew | Jacy Mairs | Health and Safety |
