Also Known As:
- Estados alterados
- Viagens Alucinantes
- Anexelengtes katastaseis
- Au-delà du réel
- Der Höllentrip
- Eksperimentet
- Experimentet
- Förändrade tillstånd
- Korenine prividov
- Muutostiloja
- Odmienne stany swiadomosci
- Stati di allucinazione
- Változó állapotok
- Viaje alucinante al fondo de la mente
- Ken Russell
- Paddy Chayefsky (as Sidney Aaron)
- William Hurt ... Eddie Jessup
- Blair Brown ... Emily Jessup
- Bob Balaban ... Arthur Rosenberg
- Charles Haid ... Mason Parrish
- Thaao Penghlis ... Echeverria
- Miguel Godreau ... Primal Man
- Dori Brenner ... Sylvia Rosenberg
- Peter Brandon ... Hobart
- Charles White-Eagle ... The Brujo
- Drew Barrymore ... Margaret Jessup
- Megan Jeffers ... Grace Jessup
- Jack Murdock ... Hector Orteco
- Francis X. McCarthy ... Obispo (as Frank McCarthy)
- Deborah Baltzell ... Schizophrenic Patient
- Evan Richards ... Young Rosenberg
- Hap Lawrence ... Endocrinology Fellow
- John Walter Davis ... Medical Technician
- Cynthia Burr ... Parrish's Girl
- Susan Bredhoff ... Echeverria's Girl
- John Larroquette ... X-Ray Technician
- George Gaynes ... Dr. Wissenschaft
- Ora Rubinstein ... Young Medical Student
- Paul Larsson ... Charlie Thomas
- Eric Forst ... Mingus
- Adriana Shaw ... Dr. Antonini
- Martin Fiscoe ... Graduate Student
- Olivia Michelle ... Veronica
.