A psychologist who begins working with a young boy who has suffered a near-fatal fall finds himself drawn into a mystery that tests the boundaries of fantasy and reality.
| Directing | Alexandre Aja | Director |
| Writing | Max Minghella | Screenplay |
| Writing | Liz Jensen | Novel |
| Editing | Rob Farris | Digital Intermediate |
| Production | Tim Bricknell | Producer |
| Lighting | James M. Jackson | Best Boy Electric |
| Sound | Martin Cantwell | Sound Effects Editor |
| Camera | Ian Seabrook | Underwater Director of Photography |
| Visual Effects | Angela Barson | Visual Effects Supervisor |
| Directing | Patti Henderson | Script Supervisor |
| Editing | Jonathan Collard | Digital Intermediate |
| Art | Rachel O'Toole | Production Design |
| Camera | Alex Martinez | First Assistant Camera |
| Visual Effects | Sascha Fromeyer | Visual Effects Producer |
| Visual Effects | Henry Badgett | Visual Effects Supervisor |
| Sound | Gavin Coford | Boom Operator |
| Sound | Gareth Rhys Jones | Foley |
| Costume & Make-Up | Julie McHaffie | Key Hair Stylist |
| Costume & Make-Up | Connie Parker | Makeup Department Head |
| Editing | Patrick Malone | Digital Intermediate |
| Art | Kate Marshall | Set Decoration |
| Costume & Make-Up | Carla Hetland | Costume Design |
| Sound | Laurence Love Greed | Music Editor |
| Camera | Phil Pastuhov | Aerial Director of Photography |
| Camera | Peter Wilke | Steadicam Operator |
| Sound | Jamie Roden | Sound Re-Recording Mixer |
| Art | Nigel Evans | Art Direction |
| Sound | Tim Cavagin | Sound Re-Recording Mixer |
| Art | Teresa Ngan | Art Department Coordinator |
| Art | Jesse Joslin | Construction Coordinator |
| Editing | Thom Kyle | First Assistant Editor |
| Production | Shawn Williamson | Producer |
| Camera | Maxime Alexandre | Director of Photography |
| Camera | Peter Zuccarini | Underwater Director of Photography |
| Production | Maureen Webb | Casting |
| Production | Max Minghella | Producer |
| Art | Alex Maclean | Title Designer |
| Costume & Make-Up | Cathy Darby | Assistant Costume Designer |
| Production | Vanessa Baker | ADR Voice Casting |
| Visual Effects | Robin Hinch | VFX Editor |
| Sound | Julien Pirrie | Foley |
| Sound | Michael O'Farrell | Supervising Sound Editor |
| Editing | Baxter | Editor |
| Camera | Doane Gregory | Still Photographer |
| Art | Jeremy Nitsch | Assistant Property Master |
| Costume & Make-Up | Mariah Crawley | Hairstylist |
| Lighting | David Tickell | Gaffer |
| Sound | Mathias Schuster | Foley Editor |
| Sound | Patrick Watson | Music |
| Camera | Taylor Matheson | First Assistant Camera |
| Visual Effects | James Sutton | 3D Artist |
| Art | Randy Hutniak | Assistant Art Director |
| Editing | Thialy Sow | First Assistant Editor |
| Production | Alexandre Aja | Producer |
| Costume & Make-Up | Julie Alexandra Lepage | Set Costumer |
| Production | Dylan Rogers | Casting Assistant |
| Crew | Jak Osmond | Special Effects Coordinator |
| Art | Tyler Smith | Property Master |
| Art | Dave Righton | Assistant Property Master |
| Visual Effects | Toby Langley | Visual Effects Coordinator |
| Sound | Mason Hnatiw | Boom Operator |
| Camera | Stephen Maier | Second Unit Director of Photography |
