The original “Mothra vs. Godzilla” came out in 1964, which means that even the people who saw it then can’t remember it. So allow me to recap. Mothra — a moth goddess, so fertile and nurturing that her brown speckled-body could be a Goop caftan — lays a giant larvae-filled egg off the coast of Japan. Godzilla — coldblooded stomper of things — wants to smash the egg. A huge battle ensues between the forces of creation and destruction.