Investigators pursuing a bizarre hemorrhagic illness are lead to a strange black painting that they discover is a portal to another dimension.
Unfortunately the movie The Portal is not yet available on HBO Max.
| Production | Serge Rodnunsky | Producer |
| Directing | Serge Rodnunsky | Director |
| Sound | Danny Tannenbaum | Music |
| Production | Christine Joyce | Casting |
| Costume & Make-Up | Nicole Schott | Costume Design |
| Writing | Serge Rodnunsky | Writer |
| Sound | Nick Smeloff Jr. | Boom Operator |
| Crew | Liz Mendoza | Special Effects |
| Camera | Phillip Smith | Grip |
| Crew | Christian H. Clark | Driver |
| Art | Andrew Baird | Art Direction |
| Art | Greg Reimink | Main Title Designer |
| Crew | Kazuyuki Okada | Special Effects |
| Lighting | Kenneth Marc | Electrician |
| Directing | Kristine Familletti | Script Supervisor |
| Production | Joel Ariniello | Art Department Production Assistant |
| Costume & Make-Up | Kaitlin Weichsel | Wardrobe Supervisor |
| Production | Jason Koren | Unit Production Manager |
| Directing | Alexander Dutton | First Assistant Director |
| Costume & Make-Up | David J. Dai'Ley | Key Makeup Artist |
| Crew | Gage Hubbard | Special Effects |
| Production | Elke Bernd | Production Assistant |
| Camera | Sean Michael Hill | Key Grip |
| Production | Matt Shichtman | Production Assistant |
| Art | Andrew Baird | Production Design |
| Art | Eric Atkisson | Set Decoration |
| Camera | Sean Hill | Key Grip |
| Costume & Make-Up | Ernest Esquer | Key Hair Stylist |
| Lighting | Kenneth M. Chernow | Electrician |
| Lighting | Jake Rose | Best Boy Electric |
| Production | Elke Bernd | Casting Assistant |
| Editing | Nicole Opyr | Editor |
| Visual Effects | Tom Devlin | Special Effects Supervisor |
| Camera | Loren Kling | Camera Operator |
| Camera | Rob Givens | First Assistant Camera |
| Lighting | Carlos M. Jimenez | Gaffer |
| Production | Aline Larrison Campbell | Production Coordinator |
| Crew | Sage Michael | Driver |
| Crew | Kazuyuki Okada | Makeup Effects |
| Camera | Ben Chananie | Best Boy Grip |
| Crew | Gage Hubbard | Makeup Effects |
| Editing | Mychal Simka | Editor |
| Costume & Make-Up | Kaitlin Weichsel | Assistant Costume Designer |
| Camera | Serge Rodnunsky | Director of Photography |
| Lighting | Jake Leannah | Electrician |
| Crew | Jonathan M. Hart | Craft Service |