Monsters of the Night and The Night Crawlers) is a 1966 independently made American science fiction-monster film drama produced by Jack Broder (and Roger Corman, uncredited), written and directed by Michael A. Hoey, that stars Mamie Van Doren, Anthony Eisley, Billy Gray, Bobby Van and Pamela Mason.

The dull, workaday life at the small American Navy weather station based on Gow Island in the South Pacific is interrupted by the pending arrival of a C-47 transport for refueling.

Aboard the aircraft are a team of scientists, an Air Force flight crew, and a cargo of specimens from their completed expedition to the Antarctic.

He, Navy nurse Nora Hall (Van Doren), and biologist Arthur Beecham (Walter Sande) reach the wreck only to find that the scientists and most of the crew are now mysteriously missing.

The weather station's scientists try to figure out a connection between this event and a corrosive residue that begins turning up at various island locations.

It slowly becomes clear that the planted prehistoric trees have grown into acid-secreting, carnivorous monsters that move about Gow Island at night, at will.

Brown has to hold together his dwindling Navy personnel and the coterie of scientists and civilians while figuring out a way to stop this prehistoric menace.

Fighter jets drop both napalm and fire air-to-ground missiles at the slow-moving night monsters, setting them ablaze.

As a result, the threat to Gow Island's surviving personnel is quickly eliminated, and Brown and Nora are free to pursue a romance which developed in the course of fighting the menace.

Producer George Edwards read it and agreed to finance the film; because of the limited amount of money available, Hoey was hired to direct.

He later stated that he was paid $10,000 for the script and his services, $4,000 of which went to Leinster for the film rights, $2,000 to the Directors Guild of America and another $1,000 to his agent, netting him only $3,000 for his efforts.

[1] The cast included Gray (of The Day the Earth Stood Still and the TV series Father Knows Best), who Hoey said "had sort of been having a tough time; he straightened his act out but was still having trouble getting back.

When Hoey left the film, Broder hired Arthur Pierce, director of Women of the Prehistoric Planet, to shoot additional scenes.

Then, months after the picture was shut down, the producer put in this stupid stock footage of bombers blowing up the island at the end and shot these monotonous talking scenes of generals on the telephone that were not at all germane to the original story.

[4] On his website Fantastic Movie Musings and Ramblings, Dave Sindelar criticized the film's poor acting, direction and script, and concluded that it "works best as inconsequential timekiller".