Attack of the Mushroom People

The survivors of a shipwreck are stranded on an island filled with strange mushrooms. As order breaks down and food becomes scarce, some start to eat the mushrooms, initiating a transformation into zombie-like fungus creatures.

Attack of the Mushroom People is a 1963 mystery horror movie directed by Ishirô Honda, starring Hiroshi Koizumi, Akira Kubo, Kumi Mizuno. It holds an IMDb rating of 6.4/10 from 3,967 votes and runs 1h 29m.