The Neptune Factor


The Neptune Factor, also known as The Neptune Disaster, is a 1973 science fiction film directed by Daniel Petrie, featuring underwater cinematography by Paul Herbermann. The film's special effects utilized underwater photography of miniatures with actual marine life.

Plot

Marine scientists prepare to leave their underwater Oceanlab after an extended stay performing oceanographic research. An underwater earthquake interrupts their plans. Dr. Andrews enlists experimental sub captain Adrien Blake to survey the damage and rescue the oceanauts. He brings along Chief Diver "Mack" MacKay and Dr. Leah Jansen, fiancée of one of the scientists.
Blake finds the lab has been ripped from its moorings and has tumbled down an unexplored, deep ocean trench, presumably intact. With the lab's reserve air supply dwindling, the team descends into the unexplored trench and finds an incredible ecosystem populated with monstrously oversized fish.
After surviving encounters with unfriendly denizens, they find the lab partially intact, the surviving scientists breathing from scuba tanks and fending off giant, hungry eels. Diver Moulton sacrifices his life distracting the eels in order to enable the others to be rescued. The submarine returns to the surface with the two rescued scientists.

Cast

The film was based on an original story by writer Jack DeWitt. Gazzara and Borgnine's casting was announced in August 1972. The movie has a subtitle of "An Underwater Odyssey".
Filming began in Toronto in September 1972.
The nature of the Oceanlab underwater facility bears a resemblance to real-world projects of the 1960s such as the ConShelf Two project of Jacques Cousteau, NASA's NEEMO, and the US Navy SEALAB.

Release

The film premiered in Florida in May 1973 and grossed $203,000 in its first four days.

Reception

TV Guide gave the film one out of 5 stars, stating that while its underwater photography was well done, the film was predictable, the characters stereotypes and the story lacking. The New York Times also praised the photography, but found little else of value in the film.