While on a summer trip with her friends, Megan begins to feel the presence of Sophie, her twin sister who recently committed suicide.
Unfortunately the movie Solstice is not yet available on HBO Max.
| Writing | Rasmus Heisterberg | Original Film Writer |
| Writing | Ethan Erwin | Screenplay |
| Writing | Martin Musatov | Screenplay |
| Writing | Daniel Myrick | Screenplay |
| Writing | Carsten Myllerup | Original Film Writer |
| Directing | Daniel Myrick | Director |
| Directing | Rhys Summerhayes | Second Assistant Director |
| Camera | John T. Martin | Key Grip |
| Costume & Make-Up | Teresa Vest | Key Makeup Artist |
| Camera | Marcos O. Lopez | First Assistant Camera |
| Crew | Jeff Galpin | Stunt Coordinator |
| Directing | Kris Smith | Script Supervisor |
| Costume & Make-Up | Karen Toole-Rentrop | Makeup Department Head |
| Costume & Make-Up | Joe Walsh Jr. | On Set Dresser |
| Sound | Rene Defrancesch | Boom Operator |
| Camera | Darby Newman | Second Assistant Camera |
| Costume & Make-Up | Betty Hamnac | Key Hair Stylist |
| Art | Marthe Pineau | Set Decoration |
| Costume & Make-Up | Yolanda Mercadel | Hair Department Head |
| Crew | Karin Justman | Stunts |
| Sound | Paula Fairfield | Supervising Sound Editor |
| Sound | Todd Beckett | Sound Effects Editor |
| Production | James D. Stern | Producer |
| Crew | Russell Towery | Utility Stunts |
| Crew | David J. Barker | Special Effects |
| Art | Bruton Jones | Production Design |
| Production | Douglas Hansen | Executive Producer |
| Sound | Carla Murray | Sound Effects Editor |
| Directing | Louis Paul Tocchet | First Assistant Director |
| Production | Adam Del Deo | Producer |
| Crew | Holly O'Quin | Stunt Double |
| Crew | Trace Cheramie | Stunts |
| Lighting | Keith Morgan | Gaffer |
| Costume & Make-Up | Teresa Vest | Special Effects Makeup Artist |
| Production | Monika Mikkelsen | Casting |
| Production | Mary Vernieu | Casting |
| Crew | Chris J. Fanguy | Utility Stunts |
| Production | Mason Novick | Co-Executive Producer |
| Visual Effects | Cedric Nicolas-Troyan | Visual Effects Supervisor |
| Camera | M. David Mullen | Director of Photography |
| Sound | Jane Antonia Cornish | Original Music Composer |