I am trying to find out the name of a Japanese monster movie where there were two huge same looking monster, one was brown and the other a grayish color. The brown one was good and came from the mountains and the grayish was not so good and came from the sea. The brown attempted to convince the grayish monster not to be mean and destroy towns but couldn't do the convincing and both ended up fighting and in the ocean. Thanks in advance, Ed.