Mothra vs. Godzilla

Godzilla faces off against the benevolent insect monster-god Mothra in this clash of the titans—the last in which Godzilla would figure as a villain rather than a fearsome hero. “Mothra vs. Godzilla” marks a creative high point in the Godzilla series, with a masterful score by Akira Ifukube and astonishing special-effects work by Eiji Tsuburaya. 

In Japanese with English subtitles.