Mothra was the third major addition to the Toho Studios' giant-monster stable after Godzilla and Rodan, and the first female beast in the series. The creature begins Ishiro Honda's entertaining film as a giant larva worshipped by island tribesmen and guarded by twin sisters (Emi and Yumi Ito) who stand only a few inches high. Eventually, the larva metamorphoses into a giant female moth and panic ensues as the creature attempts to regain her stolen egg and her tiny protectors. The usual pandemonium and destruction is tempered here by a softer edge which would come to dominate the genre for much of the decade.~ Robert Firsching, All Movie Guide