Gorgo (1961) is a British addition to the monster genre during the 60s during the height of the Godzilla era. The storyline follows a boat that crashes on an island. While stranded on the island they discover a monster that is caught in some fishing nets. When they're rescued from the island they bring the monster with them and sell him to the circus. Little do they know the much larger mother can track her baby and is about to gain revenge for their actions.
This movie is directed by Eugène Lourié (Godzilla, 1977) and stars Bill Travers (Born Free), William Sylvester (2001: A Space Odyssey), Vincent Winter (Almost Angels) and Maurice Kaufmann (The Hero).
The storyline for this picture is a mixed bag of stolen ideas from a bunch of movies like Godzilla and King Kong, etc but it's still fun to watch. I will say the special effects are crazy, there's some giant plastic fish in this that are hilarious. The monster suits and Gorgo itself are also hilarious but the red eyes are great. Some of the kills he does are very entertaining and while the circus idea was cliche it was very well executed and fun to watch. The models are great and seeing the London landscape and bridge destroyed was very well done.
Overall this isn't the best in its genre but it's still a must see for fans of monster movies. I would score this a 5-5.5/10 and recommend seeing it once with the appropriate expectations.