Mark and Mary's meet-cute happens at a neighborhood drug store, where she is busy buying a pregnancy test, and he has to make an effort to remind her they met in college. After asking her out, he accompanies her as she takes the test, and upon it showing negative, she agrees to a date. One year later, they have fallen deeply, passionately, head over heels in love, and their whirlwind romance leads to marriage. So when Mary suddenly requests they open their relationship to “ethical non-monogamy”, Mark is taken by surprise, but agrees to try it. And that's where this story really begins.
Unfortunately the movie Mark, Mary + Some Other People is not yet available on HBO Max.
| Directing | Hannah Marks | Director |
| Writing | Hannah Marks | Screenplay |
| Production | Stephen Braun | Executive Producer |
| Production | Jonathan Duffy | Producer |
| Production | Jon Lullo | Producer |
| Production | Hannah Marks | Producer |
| Production | Brendan Walter | Producer |
| Production | Kelly Williams | Producer |
| Sound | Patrick Stump | Music |
| Camera | Casey Stolberg | Director of Photography |
| Editing | Andy Holton | Editor |
| Art | Miranda Lorenz | Production Design |
| Costume & Make-Up | Jacque Piotrowski | Makeup Artist |
| Costume & Make-Up | Krista Segars | Makeup Department Head |
| Sound | Darin Heinis | Supervising Sound Editor |
| Sound | Darin Heinis | Sound Re-Recording Mixer |
| Sound | Neisha Heinis | Sound Editor |
| Visual Effects | Max Colt Chyzhevskyy | Visual Effects Producer |
