The opening theme song "Money, Money" was written by writer/director/star Cornel Wilde and sung by British musician Ken Barrie.
Much of the film was shot in Bonaire in the Dutch Antilles.
Yaphet Kotto's character (Ben Flynn) has similarities to his most famous role of Parker in Alien (1979), which came out four years later. He's a blue-collar type (along with a blue-collar type buddy) who works beneath the story's main vessel (a boat here, a spaceship there) while constantly complaining about not only the dire situation but the leadership from above.
The Swedish title Hajarna - benknäckarna translates to The sharks - the bone breakers.