Cyclone

Cyclone is a 1978 survival horror film co-written and directed by René Cardona Jr., and starring Arthur Kennedy, Carroll Baker, Lionel Stander, Andrés García, Hugo Stiglitz, Mario Almada and Olga Karlatos. The plot follows a group of passengers from a crashed airplane who find refuge on a small tour boat in the ocean, and who eventually resort to cannibalism for survival. The film is purportedly based in part on Alfred Hitchcock's Lifeboat (1944).

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.