Gappa The Triphibian Monsters
Probably one of the worst non-Toho attempts at a monster movie. The dubbing is so bad it makes Gamera vs. Guiron look professionally executed. The imdb link has a different title, but it's the same movie.
Robert Christopher Fagnan commented
AKA Monster From a Prehistoric Planet, this is basically "Rodan" meets "Gorgo." Unscrupulous business-types send an expedition to an island. They take a freshly hatched monster back to civilization. Mama and Papa monster are most displeased with this turn of events and react in a predictable fashion. "Gappa angry!"