Also known as:
- Phase IV (1974)
- Phase Four (1974)
- Phase 4 (1974)
- Fase IV: distruzione Terra
- Sucesos en la IV fase
- Du tror inte dina ögon
Directed by:
- Saul Bass
Written by:
- Barry N. Malzberg (novel)
- Mayo Simon
Cast:
- Michael Murphy ... James R. Lesko
- Nigel Davenport ... Dr. Ernest D. Hubbs
- Lynne Frederick ... Kendra Eldridge
- Alan Gifford ... Mr. Eldridge
- Robert Henderson ... Clete
- Helen Horton ... Mildred Eldridge
- David Healy ... Radio (voice)
.