Sukelluslaivalla maapallon ympäri

The undersea footage was shot in the Bahamas in the same location that was used for the silent 20,000 Leagues Under the Sea (1916).

When the giant squid appears, it is swimming toward the Nautilus with its tentacles first. While squid can swim in both directions, they normally move mantle first with tentacles trailing due to much better movement through the water and their gill systems adapted to movement in this direction, particularly if they are trying to swim at a high rate of speed. Also, if the squid was moving with the tentacles in front, they would trail toward the back, not stay rigidly in front of it, like a person's arms stretched out.

When originally released theatrically in the UK, the BBFC made cuts to secure a 'U' rating. All cuts were waived in 1985 when the film was re-rated with a 'U' certificate for home video.

Edited into Disneyland: 20000 Leagues Under the Sea (1976)