gorgo (1961)

After an earthquake disrupts a small fishing village in the West of Ireland, a salvage ship captures a large dinosaur like creature. A circus owner pays them to display it in London and names it Gorgo. But what they don't know is that Gorgo is in fact a youngster and his mother wants him back.
An unasshamed rip off of Godzilla, a bit of King Kong and some Beast From 20,000 Fathoms, but adds the twist of a mother's love and her distruction of just about every bit of London a tourist will know of: from the houses of parliament to Piccadilly Circus, they all get stomped. A surprisingly good cast, including Bill Travers and William Sylvester, get to run around as a child spouts portents of doom at them. Not up to the mark of the original Godzilla, but still an enjoyable twist to the genre.