Anecdotes

Dennis Hopper's sailor suit was slightly darkened so it would read as white on film. During production, Hopper was spotted by military police who threatened to arrest him for wearing a dirty uniform.

Dennis Hopper insisted on not using a double for the scuba diving sequence.

The club patrons in the opening scene, in the Blue Grotto Bar, were friends of the crew. They appeared because there was no money in the budget to hire extras.

Writer/director Curtis Harrington had a lifelong obsession with the writings of Edgar Allan Poe, which surfaced in many of his films. The story was inspired by, and the title "Night Tide" was derived from, Poe's poem "Annabel Lee."

The seagull's beak was wired shut to prevent it from injuring the actors.