99		Pitch Black (Horror, Sci-Fi, 2000)
99		Alien Raiders (Action, Horror, Sci-Fi, 2008)
99		Creature (Horror, Sci-Fi, 1985)
99		Alien³ (Action, Horror, Sci-Fi, 1992)
99		AVP: Alien vs. Predator (Action, Horror, Sci-Fi, 2004)
99		Prometheus (Adventure, Mystery, Sci-Fi, 2012)
99		Aliens (Adventure, Sci-Fi, Thriller, 1986)
99		I Married a Monster from Outer Space (Horror, Sci-Fi, 1958)
99		Event Horizon (Horror, Sci-Fi, Thriller, 1997)
99		Alien: Resurrection (Action, Horror, Sci-Fi, 1997)
95		Serenity (Action, Adventure, Sci-Fi, 2005)
92		The Thing (Horror, Mystery, Sci-Fi, 2011)
92		Aliens vs. Predator: Requiem (Action, Horror, Sci-Fi, 2007)
92		Dark Breed (Action, Horror, Sci-Fi, 1996)
90		The Black Hole (Action, Sci-Fi, 1979)
89		Galaxy of Terror (Action, Adventure, Horror, Sci-Fi, 1981)
89		Sunshine (Adventure, Sci-Fi, Thriller, 2007)
89		Saturn 3 (Adventure, Sci-Fi, Thriller, 1980)
85		It! The Terror from Beyond Space (Horror, Sci-Fi, 1958)
85		Titan A.E. (Animation, Action, Adventure, Sci-Fi, 2000)
85		Virus (Action, Horror, Thriller, Sci-Fi, 1999)
84		Xtro (Horror, Sci-Fi, 1982)
83		The Deadly Spawn (Horror, Sci-Fi, 1983)
82		Resident Evil: Apocalypse (Action, Horror, Sci-Fi, 2004)
82		The Puppet Masters (Horror, Sci-Fi, Thriller, 1994)
80		Without Warning (Sci-Fi, Horror, 1980)
80		Hardware (Sci-Fi, Thriller, 1990)
80		Creature from the Black Lagoon (Horror, Sci-Fi, 1954)
80		The Curse of Frankenstein (Horror, Sci-Fi, 1957)
80		The Fifth Element (Action, Adventure, Sci-Fi, 1997)
78		Zardoz (Fantasy, Sci-Fi, 1974)
78		The Blob (Horror, Sci-Fi, Thriller, 1988)
77		The Purge: Election Year (Action, Horror, Sci-Fi, 2016)
77		Another World (Action, Horror, Sci-Fi, 2014)
77		Species II (Action, Horror, Sci-Fi, 1998)
77		Silent Running (Drama, Sci-Fi, 1972)
76		Turkey Shoot (Drama, Horror, Sci-Fi, 1982)
75		It Came from Outer Space (Horror, Sci-Fi, 1953)
75		THX 1138 (Crime, Drama, Sci-Fi, 1971)
75		Queen of Blood (Horror, Sci-Fi, 1966)
75		Hellraiser: Bloodline (Horror, Sci-Fi, 1996)
75		Forbidden Planet (Action, Adventure, Sci-Fi, 1956)
75		Ender's Game (Action, Sci-Fi, 2013)
75		The Martian (Adventure, Drama, Sci-Fi, 2015)
74		Predator (Action, Horror, Sci-Fi, 1987)
74		Returner (Action, Adventure, Sci-Fi, 2002)
74		Lifeforce (Action, Horror, Sci-Fi, 1985)
74		I, Robot (Action, Mystery, Sci-Fi, 2004)
72		Unearthed (Horror, Mystery, Sci-Fi, 2007)
72		The Fly (Drama, Horror, Sci-Fi, 1958)
72		Invasion of the Bee Girls (Horror, Sci-Fi, 1973)
72		DeepStar Six (Action, Horror, Sci-Fi, 1989)
72		The Man from Planet X (Horror, Romance, Sci-Fi, 1951)
72		Ghosts of Mars (Action, Horror, Sci-Fi, 2001)
71		2001: A Space Odyssey (Adventure, Mystery, Sci-Fi, 1968)
70		Deep Rising (Action, Adventure, Horror, Sci-Fi, 1998)
70		Harbinger Down (Horror, Sci-Fi, 2015)
70		Minority Report (Action, Mystery, Sci-Fi, 2002)
70		Pandorum (Action, Horror, Mystery, Sci-Fi, 2009)
69		Red Planet (Action, Sci-Fi, Thriller, 2000)
69		Alien Prey (Horror, Sci-Fi, 1977)
69		Predators (Action, Adventure, Sci-Fi, 2010)
69		Demon Seed (Horror, Sci-Fi, 1977)
67		Predator 2 (Action, Horror, Sci-Fi, 1990)
67		Horror Express (Horror, Sci-Fi, 1972)
65		Europa Report (Sci-Fi, Thriller, 2013)
65		The Creature Walks Among Us (Horror, Sci-Fi, 1956)
65		Earth vs. the Flying Saucers (Action, Sci-Fi, 1956)
65		Plan 9 from Outer Space (Horror, Sci-Fi, 1959)
65		The Dark (Horror, Sci-Fi, 1979)
65		Not of This Earth (Horror, Sci-Fi, 1957)
65		The Alien Factor (Horror, Sci-Fi, 1978)
65		The Matrix Revolutions (Action, Sci-Fi, 2003)
65		Revenge of the Creature (Horror, Sci-Fi, 1955)
65		Gravity (Adventure, Drama, Sci-Fi, 2013)
64		The Hunger Games (Adventure, Drama, Sci-Fi, 2012)
64		Contact (Drama, Mystery, Sci-Fi, 1997)
64		Star Trek: The Motion Picture (Adventure, Mystery, Sci-Fi, 1979)
64		Sphere (Drama, Mystery, Sci-Fi, 1998)
64		Star Trek: Insurrection (Action, Adventure, Sci-Fi, 1998)
62		Crawlspace (Horror, Mystery, Sci-Fi, 2012)
62		Man Made Monster (Drama, Horror, Sci-Fi, 1941)
62		Quarantine (Horror, Sci-Fi, Thriller, 2008)
62		The Creeping Flesh (Horror, Sci-Fi, 1973)
62		Jason X (Action, Horror, Sci-Fi, 2001)
62		Invaders from Mars (Horror, Sci-Fi, 1986)
61		The Brain (Horror, Sci-Fi, 1988)
61		Blade Runner (Sci-Fi, Thriller, 1982)
61		Cowboy Bebop: The Movie (Animation, Action, Crime, Sci-Fi, 2001)
61		Avatar (Action, Adventure, Fantasy, Sci-Fi, 2009)
60		The Invasion (Sci-Fi, Thriller, 2007)
60		Robinson Crusoe on Mars (Adventure, Sci-Fi, 1964)
60		The Stepford Wives (Horror, Mystery, Sci-Fi, 1975)
60		Love (Drama, Sci-Fi, 2011)
60		Resident Evil: Degeneration (Animation, Action, Horror, Sci-Fi, 2008)
60		War of the Satellites (Horror, Sci-Fi, 1958)
60		Extraterrestrial (Horror, Sci-Fi, 2014)
60		Seedpeople (Horror, Sci-Fi, 1992)
59		Stargate (Action, Adventure, Sci-Fi, 1994)
59		Android (Crime, Sci-Fi, 1982)
59		Pacific Rim (Action, Adventure, Sci-Fi, 2013)
59		Heavy Metal (Animation, Adventure, Fantasy, Sci-Fi, 1981)
59		Starship Troopers 3: Marauder (Action, Adventure, Sci-Fi, 2008)
58		They Live (Horror, Sci-Fi, Thriller, 1988)
58		Outland (Action, Crime, Sci-Fi, 1981)
58		The Thing (Horror, Mystery, Sci-Fi, 1982)
58		The Matrix (Action, Sci-Fi, 1999)
57		Resident Evil: Extinction (Action, Horror, Sci-Fi, 2007)
57		Dreamcatcher (Drama, Horror, Sci-Fi, 2003)
57		Alien Abduction (Horror, Sci-Fi, Thriller, 2014)
57		Altered (Horror, Sci-Fi, Thriller, 2006)
57		Star Wars: The Force Awakens (Action, Adventure, Fantasy, Sci-Fi, 2015)
56		Guardians of the Galaxy (Action, Adventure, Sci-Fi, 2014)
56		Stranded (Sci-Fi, 1987)
56		Escape from the Planet of the Apes (Action, Sci-Fi, 1971)
56		The Hidden (Action, Crime, Horror, Sci-Fi, 1987)
56		Doctor Who: Besieged (Sci-Fi, 2013)
55		The Blob (Horror, Sci-Fi, 1958)
55		Moontrap (Horror, Sci-Fi, 1989)
55		Storage 24 (Horror, Sci-Fi, 2012)
55		Planet of the Apes (Adventure, Romance, Sci-Fi, 1968)
55		The Darkest Hour (Action, Adventure, Horror, Sci-Fi, 2011)
55		Phantom from Space (Horror, Sci-Fi, 1953)
55		The Thing from Another World (Horror, Sci-Fi, 1951)
55		Strange Invaders (Horror, Mystery, Sci-Fi, 1983)
55		Alien Factor 2: The Alien Rampage (Horror, Sci-Fi, 2001)
55		Monsters vs. Aliens (Animation, Action, Adventure, Sci-Fi, 2009)
55		Invasion of the Body Snatchers (Horror, Sci-Fi, 1978)
55		Enemy from Space (Sci-Fi, Horror, 1957)
55		Driller (Horror, Sci-Fi, 2006)
55		Target Earth (Horror, Sci-Fi, 1954)
55		Fortress 2 (Action, Sci-Fi, 2000)
55		Underworld: Evolution (Action, Adventure, Fantasy, Sci-Fi, 2006)
55		X the Unknown (Horror, Sci-Fi, 1956)
55		Solaris (Drama, Mystery, Romance, Sci-Fi, 2002)
54		Paycheck (Action, Mystery, Sci-Fi, 2003)
54		Star Trek: Nemesis (Action, Adventure, Sci-Fi, 2002)
54		TRON (Action, Adventure, Sci-Fi, 2010)
54		The Maze Runner (Action, Mystery, Sci-Fi, 2014)
54		The Scorch Trials (Action, Sci-Fi, Thriller, 2015)
54		Memoirs of a Survivor (Sci-Fi, 1981)
54		Buck Rogers (Romance, Sci-Fi, 1977)
54		Independence Day (Action, Adventure, Sci-Fi, 1996)
54		Doomsday (Action, Sci-Fi, Thriller, 2008)
54		Riddick (Action, Sci-Fi, Thriller, 2013)
54		Terminator Salvation (Action, Adventure, Sci-Fi, 2009)
54		Cowboys & Aliens (Action, Sci-Fi, Thriller, 2011)
53		TRON (Action, Adventure, Sci-Fi, 1982)
53		Starman (Romance, Sci-Fi, 1984)
52		Enemy Mine (Action, Adventure, Drama, Sci-Fi, 1985)
52		Five Million Years to Earth (Horror, Mystery, Sci-Fi, 1967)
52		This Island Earth (Horror, Mystery, Sci-Fi, 1955)
52		Resident Evil (Action, Horror, Sci-Fi, 2002)
52		Godzilla, King of the Monsters! (Action, Horror, Sci-Fi, 1956)
52		The Green Slime (Drama, Horror, Sci-Fi, 1968)
52		The Last Starfighter (Action, Adventure, Sci-Fi, 1984)
52		Godzilla vs. Destoroyah (Action, Horror, Sci-Fi, 1995)
52		Space Raiders (Action, Adventure, Sci-Fi, 1983)
52		Dune (Action, Adventure, Sci-Fi, 1984)
52		Repo! The Genetic Opera (Horror, Musical, Sci-Fi, 2008)
52		Village of the Damned (Horror, Sci-Fi, Thriller, 1995)
51		The Hunger Games: Catching Fire (Action, Adventure, Mystery, Sci-Fi, 2013)
51		Westworld (Action, Sci-Fi, Thriller, 1973)
51		Vampire Hunter D: Bloodlust (Animation, Action, Adventure, Sci-Fi, 2000)
51		Transformations (Horror, Sci-Fi, 1988)
50		Total Recall (Action, Sci-Fi, 1990)
50		Species (Action, Horror, Romance, Sci-Fi, 1995)
50		Not Like Us (Horror, Sci-Fi, 1995)
50		Screamers (Sci-Fi, Thriller, 1995)
50		The Arrival (Horror, Sci-Fi, 1991)
50		Goke, Body Snatcher from Hell (Horror, Sci-Fi, 1968)
50		The Brain Leeches (Horror, Sci-Fi, 1978)
50		Starship Troopers (Action, Sci-Fi, 1997)
50		Close Encounters of the Third Kind (Drama, Sci-Fi, 1977)
50		Slipstream (Adventure, Sci-Fi, 1989)
50		Final Fantasy: The Spirits Within (Animation, Action, Adventure, Sci-Fi, 2001)
50		Still Waters (Horror, Sci-Fi, 2011)
50		The Brain Eaters (Sci-Fi, Horror, 1958)
50		Zombies of the Stratosphere (Action, Sci-Fi, 1952)
50		Subject 87 (Horror, Sci-Fi, 2007)
50		Star Trek (Action, Adventure, Sci-Fi, 2009)
50		District 9 (Action, Sci-Fi, Thriller, 2009)
50		Edge of Tomorrow (Action, Adventure, Sci-Fi, 2014)
50		Debug (Horror, Sci-Fi, 2014)
50		The Quatermass Xperiment (Horror, Sci-Fi, 1955)
50		Oblivion (Action, Adventure, Mystery, Sci-Fi, 2013)
50		Æon Flux (Action, Sci-Fi, 2005)
50		Attack of the 50 Foot Woman (Horror, Sci-Fi, 1958)
50		Spaceflight IC-1: An Adventure in Space (Sci-Fi, 1965)
50		The Earth Dies Screaming (Horror, Sci-Fi, 1964)
49		Transformers (Action, Adventure, Sci-Fi, 2007)
49		Independence Day: Resurgence (Action, Adventure, Sci-Fi, 2016)
49		The Chronicles of Riddick (Action, Adventure, Sci-Fi, 2004)
49		Arena (Action, Adventure, Sci-Fi, 1989)
49		Battle Beyond the Stars (Action, Adventure, Sci-Fi, 1980)
49		Mission to Mars (Adventure, Sci-Fi, Thriller, 2000)
49		The Man Who Fell to Earth (Sci-Fi, Drama, 1976)
48		Logan's Run (Action, Adventure, Sci-Fi, 1976)
48		Brazil (Drama, Sci-Fi, 1985)

Notes: Movies similar to Alien, Movies like Alien, Horror, Sci-Fi, Ridley Scott, Sigourney Weaver, Tom Skerritt, John Hurt, Veronica Cartwright, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities