Gorgo

An underwater volcanic eruption off the coast of Ireland stirs up the sea floor and unleashes a prehistoric creature. Two treasure hunters, Joe Ryan and Sam Slade, capture the beast and bring it to London, where it is put on show as a fairground attraction under the name Gorgo. The public flocks to see it, but a scientist suspects the creature is only an infant, and that a far larger parent may come looking for it.

Eugène Lourié directed; this was the second of the two films he made, following The Beast from 20,000 Fathoms in 1953. The screenplay is by Robert L. Richards and Daniel James, and the cast includes Bill Travers as Joe Ryan, William Sylvester as Sam Slade, Vincent Winter as Sean, Christopher Rhodes as McCartin, and Joseph O'Conor and Bruce Seton as Professors Hendricks and Flaherty. It runs 78 minutes and was made across the United Kingdom, Ireland and the United States, with Metro-Goldwyn-Mayer, British Lion Films and King Brothers Productions involved.

Reception over the decades has been moderate. On IMDb the film holds a rating of 5.6 from roughly 4,800 votes, and on TMDB it sits at 5.3 from around 114 votes, indicating a modest but persistent following rather than broad acclaim. It belongs to the cycle of giant-monster films of its era, set largely in London and the waters around Ireland.