A research scientist explores the boundaries and frontiers of consciousness. Using sensory deprivation and hallucinogenic mixtures from native American shamans, he explores these altered states of consciousness and finds that memory, time, and perhaps reality itself are states of mind.
Unfortunately the movie Altered States is not yet available on Disney Plus.
| Writing | Paddy Chayefsky | Novel |
| Writing | Paddy Chayefsky | Screenplay |
| Sound | John Corigliano | Original Music Composer |
| Production | Howard Gottfried | Producer |
| Production | Daniel Melnick | Executive Producer |
| Directing | Ken Russell | Director |
| Camera | Jordan Cronenweth | Director of Photography |
| Editing | Eric Jenkins | Editor |
| Production | Howard Feuer | Casting |
| Costume & Make-Up | Ruth Myers | Costume Design |
| Production | Jeremy Ritzer | Casting |
| Art | Richard Macdonald | Production Design |
| Art | Thomas L. Roysden | Set Decoration |
| Visual Effects | Bran Ferren | Visual Effects Director |
| Sound | Michael Minkler | Sound Re-Recording Mixer |
| Camera | Morgan Renard | Still Photographer |
| Crew | John M. Woodward | Transportation Coordinator |
| Lighting | Gary Holt | Gaffer |
| Sound | Michael Colgan | Supervising Sound Editor |
| Sound | Arthur Piantadosi | Sound Re-Recording Mixer |
| Camera | James Glennon | Camera Operator |
| Camera | Garrett Brown | Steadicam Operator |
| Sound | Les Fresholtz | Sound Re-Recording Mixer |
| Directing | Carline Davis-Dyer | Script Supervisor |
| Production | Paul Pav | Location Manager |
| Production | Stuart Baird | Associate Producer |
| Production | Lee Stitch | Production Secretary |
| Costume & Make-Up | Craig Reardon | Special Effects Makeup Artist |
| Directing | Peter Schindler | Second Assistant Director |
| Sound | Donald Harris | Music Editor |
| Production | David Silver | Unit Production Manager |
| Costume & Make-Up | Darryl M. Athons | Costumer |
| Production | Joel Thurm | Additional Casting |
| Costume & Make-Up | Carl Fullerton | Special Effects Makeup Artist |
| Crew | Chuck Gaspar | Special Effects |
| Crew | Larry L. Fuentes | Special Effects Assistant |
| Sound | Marvin E. Lewis | Boom Operator |
| Sound | Christopher Keene | Conductor |
| Art | Ronald C. Jacobs | Leadman |
| Costume & Make-Up | Dick Smith | Special Effects Makeup Artist |
| Sound | Fred Stafford | Sound Editor |
| Production | Stephen Kolzak | Additional Casting |
| Art | Stan Cockerell | Assistant Property Master |
| Costume & Make-Up | Shanan Harrell | Costumer |
| Sound | Willie D. Burton | Sound Mixer |
| Editing | Thomas Penick | Assistant Editor |
| Sound | Don Higgins | Sound Editor |
| Production | Susan Tarr | Research Assistant |
| Editing | Arthur W. Forney | Assistant Editor |
| Sound | Laurey Condon | Assistant Sound Editor |
| Sound | Jay Wertz | Sound Editor |
| Sound | John David Earnest | Orchestrator |
| Sound | Colin Waddy | Sound Editor |
| Crew | Scott Bartlett | Technical Advisor |
| Costume & Make-Up | Dione Taylor | Hairstylist |
| Costume & Make-Up | Michael Hancock | Makeup Artist |
| Costume & Make-Up | Rick Baker | Special Effects Makeup Artist |
| Art | Sidney H. Greenwood | Property Master |
| Lighting | Adam Glick | Lighting Technician |
| Camera | Johnny E. Jensen | First Assistant Camera |
| Camera | Bob Rose | Key Grip |
| Lighting | Sal Martorano | Electrician |
| Art | Roger Irvin | Construction Coordinator |
| Art | Tony Dyson | Props |
| Lighting | Chris Strong | Electrician |
| Directing | Gary Daigler | Assistant Director |
| Camera | Carey Jones | Second Assistant Camera |
| Art | Jeff Howard | Assistant Art Director |
| Costume & Make-Up | Rick Baker | Makeup Artist |
