Factual error: During the fight with the Giant, the USS Nautilus is preparing for a missile launch. In real life, the USS Nautilus (SSN-571) didn't have ballistic missile capabilities. In addition, if the submarine did, it would be of the Regulus missile type; a cruise missile fired by rockets and a ramp on the submarine. The film shows a Polaris-type missile being launched, which wouldn't have entered service until 1960-1961, well after the events of the movie (1957).
Matdan97
2nd Jan 2026