Alien Terror poster
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Alien Terror

3.619711h 30mMovieHorrorScience Fiction

Near the end of the 19th century, Prof. John Mayer and his assistant, the scientist Dr. Isabel Reed, accidentally invent a powerful ray. An alien travels to Earth to destroy the machine since it would be a threat to the universe. He…

DirectorsJosé Luis González de León·Jack Hill
WritersJuan Ibáñez·Karl Schanzer
ProducerLuis Enrique Vergara

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Alien Terror was released on April 1, 1971 but we couldn't find it on any streaming service yet. Rights can change — try again later.

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Cast · Directed by José Luis González de León

Boris Karloff
Boris Karloff
Prof. John Mayer
Enrique Guzmán
Enrique Guzmán
Dr. Paul Rosten
Christa Linder
Christa Linder
Laura
Maura Monti
Maura Monti
Dr. Isabel Reed
Yerye Beirute
Yerye Beirute
Thomas
Tere Valez
Tere Valez
Nancy
Griselda Mejía
Griselda Mejía
Prostitute
Sergio Kleiner
Sergio Kleiner
Alien
Mariela Flores
Mariela Flores
Deaf-mute victim
Tito Novaro
Tito Novaro
Gen. Nord
Sergio Virel
Sergio Virel
Villager
Nathanael León
Nathanael León
Villager

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Alien Terror — streaming FAQ

Which OTT platform streams Alien Terror?

Alien Terror isn't streaming anywhere in United States yet.

Is Alien Terror on Netflix?

No, Alien Terror is not on Netflix in United States as of August 2026.

Is Alien Terror on Amazon Prime Video?

No, Alien Terror isn't on Amazon Prime Video in United States right now.

Where can I watch Alien Terror for free?

Alien Terror isn't streaming in United States yet, so there's no way to watch it free at the moment.

What is the OTT release date for Alien Terror?

Alien Terror hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around May 20, 1971. This is a prediction, not a confirmed date.