This version was directed by Juan Antonio Bardem and Henri Colpi and featured Omar Sharif as Captain Nemo.

The film was unusually faithful to the original book, including the exterior design of the Nautilus.

While it seems not credible that the Nemo of the book achieved various physically demanding stunts (considering he was weakened and subsequently dying of old age), Omar Sharif is much younger, relies on what's left of his crew (killed by some kind of disease, most likely radiation poisoning) and eventually shares the same fate as his counterpart James Mason in the 1954 Disney version of 20,000 Leagues Under the Sea.

Roger Ebert awarded the film one and a half stars finding it nihilistic and lacking any decent effects.

[2] Creature Feature gave the movie 2 out of 5 stars, finding it lacking imagination or interesting special effects.