The Blob

1h 22m · 1958 · Directed by Irvin S. Yeaworth Jr. · 3.0 / 5 on Letterboxd

The Blob (1958) runs 1h 22m, directed by Irvin S. Yeaworth Jr.. 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.

A drive-in favorite, this sci-fi classic follows teenagers Steve and his best girl, Jane, as they try to protect their hometown from a gelatinous alien life form that engulfs everything it touches. The first to discover the substance and live to tell about it, Steve and Jane witness the blob destroying an elderly man, then it growing to a terrifying size. But no one else has seen the goo, and policeman Dave refuses to believe the kids without proof.

Genres: Horror, Science Fiction

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