Invasion of Astro-Monster

1h 36m · 1965 · Directed by Ishirō Honda · 3.2 / 5 on Letterboxd

Invasion of Astro-Monster (1965) runs 1h 36m, directed by Ishirō Honda. It is one of 3,647 films in the 100 Minute Movies catalog — every one rated 3.0 or higher by Letterboxd members and short enough to finish in an evening.

Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.

Genres: Action, Science Fiction

Where to watch: HBO Max (US, checked 9 July 2026)