Not of This Earth is an independently made 1957 American black-and-white science fiction film produced and directed by Roger Corman (for his Los Altos Productions), that stars Paul Birch, Beverly Garland, Morgan Jones, William Roerick, and Anna Lee Carroll.

The film was written by Charles B. Griffith and Mark Hanna and was distributed by Allied Artists Pictures Corporation as a double feature with Attack of the Crab Monsters.

Johnson communicates to an authority on Davanna through a device hidden behind a sliding panel in the living room of his Griffith Park mansion.

He removes the blood of his first victim (a teenage girl walking home at night from a date) using a system of tubes and canisters that he keeps in an aluminium attaché case.

Her boss, town physician Dr. Rochelle, is under Johnson's hypnotic control after discovering his patient's peculiar blood cell structure.

Adding to his victims are a strolling Chinese-American man, a sleazy door-to-door vacuum cleaner salesman and a trio of homeless drunks.

Nadine's friend, police patrolman Harry Sherbourne, tries to question Dr. Rochelle about the dead woman, but he is unable to speak while under Johnson's mind control.

Now fearing discovery, Johnson sends a bizarre oxygen-activated umbrella-like flying alien creature to kill Rochelle.

While Sherbourne expresses mild compassion for Johnson, for his attempt to rescue his world's dying populace, Nadine refuses to offer any kind of pity.

Corman wanted him ready to roll on a moment's notice, so he asked him to leave the contact lenses in his eyes all day long, which caused Birch extreme discomfort.

[9] Not of This Earth was released in the United States on the bottom half of a double bill with Corman's Attack of the Crab Monsters.

Geoff Andrew in his Time Out review said "Low budgets give little reason for regret when the often tacky effects are surrounded by so much imagination, good humour, and sheer joy in film-making as here.

Foreign DVD releases exist in Spain (as Emisario del otro mundo) and Germany (as Die Außerirdischen).