Space Amoeba

Space Amoeba is a 1970 film about a space probe that is infiltrated by alien beings and then crashes on a remote Pacific atoll. A group planning to build a resort hotel land on the island and discover it to be inhabited by giant mutant monsters created by the aliens in an attempt to conquer the world.
 * Directed by Ishirō Honda. Written by Ei Ogawa.

Spewed from intergalactic space to clutch the planet earth in its ... terror tentacles! (taglines)

Taglines

 * Spewed from intergalactic space to clutch the planet Earth in its ... terror tentacles!
 * The most fantastic science adventure ever filmed!

Cast

 * Akira Kubo — Taro Kudo
 * Yukiko Kobayashi — Saki
 * Kenji Sahara — Makoto Obata
 * Yoshio Tsuchiya — Dr. Kyouichi Miya
 * Tetsu Nakamura — Onbo