50 Best SciFi Films featuring alien life forms

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1.
Avatar (2009)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home. (162 mins.)
Director: James Cameron
 
2.
2001: A Space Odyssey (1968)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
Humanity finds a mysterious, obviously artificial object buried beneath the Lunar surface and, with the intelligent computer H.A.L. 9000, sets off on a quest. (149 mins.)
Director: Stanley Kubrick
 
3.
Star Wars: Episode V - The Empire Strikes Back (1980)
    1 2 3 4 5 6 7 8 9 10 8.8/10 X  
After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke. (124 mins.)
Director: Irvin Kershner
 
4.
Aliens (1986)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
The moon from Alien has been colonized, but contact is lost. This time, the rescue team has impressive firepower, but will it be enough? (137 mins.)
Director: James Cameron
 
5.
Star Wars: Episode VI - Return of the Jedi (1983)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
After rescuing Han Solo from the palace of Jabba the Hutt, the rebels attempt to destroy the second Death Star, while Luke struggles to make Vader return from the dark side of the Force. (131 mins.)
 
6.
Fantastic Planet (1973)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
This futuristic story takes place on a faraway planet where blue giants rule, and oppressed humanoids rebel against the machine-like leaders. (72 mins.)
Director: René Laloux
 
7.
Alien (1979)
    1 2 3 4 5 6 7 8 9 10 8.5/10 X  
After a space merchant vessel perceives an unknown transmission as distress call, their landing on the source moon finds one of the crew attacked by a mysterious lifeform. Continuing their journey back to Earth with the attacked crew having recovered and the critter deceased, they soon realize that its life cycle has merely begun. (117 mins.)
Director: Ridley Scott
 
8.
The Andromeda Strain (1971)
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  
A group of scientists investigate a deadly new alien virus before it can spread. (131 mins.)
Director: Robert Wise
 
9.
Dune (1984)
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  
A Duke's son leads desert warriors against the galactic emperor and his father's evil nemesis when they assassinate his father and free their desert world from the emperor's rule. (137 mins.)
Director: David Lynch
 
10.
Dark City (1998)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
A man struggles with memories of his past, including a wife he cannot remember, in a nightmarish world with no sun. (100 mins.)
Director: Alex Proyas
 
11.
The Man Who Fell to Earth (1976)
    1 2 3 4 5 6 7 8 9 10 6.7/10 X  
Thomas Jerome Newton is a humanoid alien who comes to Earth to get water for his dying planet. He starts... (139 mins.)
Director: Nicolas Roeg
 
12.
Star Wars: Episode II - Attack of the Clones (2002)
    1 2 3 4 5 6 7 8 9 10 6.7/10 X  
Ten years after initially meeting, Anakin Skywalker shares a forbidden romance with Padmé, while Obi-Wan investigates an assassination attempt on the Senator and discovers a secret clone army crafted for the Jedi. (142 mins.)
Director: George Lucas
 
13.
Star Trek (2009)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
The brash James T. Kirk tries to live up to his father's legacy with Mr. Spock keeping him in check as a vengeful Romulan from the future creates black holes to destroy the Federation one planet at a time. (127 mins.)
Director: J.J. Abrams
 
14.
District 9 (2009)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
An extraterrestrial race forced to live in slum-like conditions on Earth suddenly finds a kindred spirit in a government agent who is exposed to their biotechnology. (112 mins.)
Director: Neill Blomkamp
 
15.
The Thing (1982)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
It's the first week of winter in 1982. An American Research Base is greeted by an alien force, that can assimilate anything it touches. It's up to the members to stay alive, and be sure of who is human, and who has become one of the Things. (109 mins.)
Director: John Carpenter
 
16.
Pitch Black (2000)
    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
A commercial transport ship and its crew are marooned on a planet full of bloodthirsty creatures that only come out to feast at night. But then, they learn that a month-long eclipse is about to occur. (109 mins.)
Director: David Twohy
 
17.
The Day the Earth Stood Still (1951)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
An alien lands and tells the people of Earth that they must live peacefully or be destroyed as a danger to other planets. (92 mins.)
Director: Robert Wise
 
18.
War of the Worlds (2005)
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  
As Earth is invaded by alien tripod fighting machines, one family fights for survival. (116 mins.)
 
19.
Star Wars: Episode III - Revenge of the Sith (2005)
    1 2 3 4 5 6 7 8 9 10 7.6/10 X  
Three years into the Clone Wars, the Jedi rescue Palpatine from Count Dooku. As Obi-Wan pursues a new threat, Anakin acts as a double agent between the Jedi Council and Palpatine and is lured into a sinister plan to rule the galaxy. (140 mins.)
Director: George Lucas
 
20.
Forbidden Planet (1956)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
A starship crew goes to investigate the silence of a planet's colony only to find two survivors and a deadly secret that one of them has. (98 mins.)
 
21.
The War of the Worlds (1953)
    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
A small town in California is attacked by Martians. (85 mins.)
Director: Byron Haskin
 
22.
Five Million Years to Earth (1967)
    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
A mysterious artifact is unearthed in London, and famous scientist Bernard Quatermass is called into to divine its origins and explain its strange effects on people. (97 mins.)
Director: Roy Ward Baker
 
23.
Starship Troopers (1997)
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  
Humans in a fascistic, militaristic future do battle with giant alien bugs in a fight for survival. (129 mins.)
Director: Paul Verhoeven
 
24.
Invasion of the Body Snatchers (1978)
    1 2 3 4 5 6 7 8 9 10 7.4/10 X  
In San Francisco, a group of people discover the human race is being replaced one by one, with clones devoid of emotion. (115 mins.)
Director: Philip Kaufman
 
25.
The Fifth Element (1997)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
In the colorful future, a cab driver unwittingly becomes the central figure in the search for a legendary cosmic weapon to keep Evil and Mr Zorg at bay. (126 mins.)
Director: Luc Besson
 
26.
Enemy Mine (1985)
    1 2 3 4 5 6 7 8 9 10 6.9/10 X  
A soldier from Earth crash-lands on an alien world after sustaining battle damage. Eventually he encounters another survivor... (108 mins.)
 
27.
E.T. the Extra-Terrestrial (1982)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
A troubled child summons the courage to help a friendly alien escape Earth and return to his home world. (115 mins.)
 
28.
Signs (2002)
    1 2 3 4 5 6 7 8 9 10 6.7/10 X  
A family living on a farm finds mysterious crop circles in their fields which suggests something more frightening to come. (106 mins.)
 
29.
Star Wars: Episode I - The Phantom Menace (1999)
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  
Two Jedi Knights escape a hostile blockade to find allies and come across a young boy who may bring balance to the Force, but the long dormant Sith resurface to reclaim their old glory. (136 mins.)
Director: George Lucas
 
30.
The Mist (2007)
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  
A freak storm unleashes a species of bloodthirsty creatures on a small town, where a small band of citizens hole up in a supermarket and fight for their lives. (126 mins.)
Director: Frank Darabont
 
31.
Pandorum (2009)
    1 2 3 4 5 6 7 8 9 10 6.8/10 X  
A pair of crew members aboard a spaceship wake up with no knowledge of their mission or their identities. (108 mins.)
 
32.
Contact (1997)
    1 2 3 4 5 6 7 8 9 10 7.4/10 X  
Dr. Ellie Arroway, after years of searching, finds conclusive radio proof of intelligent aliens, who send plans for a mysterious machine. (150 mins.)
Director: Robert Zemeckis
 
33.
Titan A.E. (2000)
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  
A young man learns that he has to find a hidden Earth ship before an enemy alien species does in order to secure the survival of humanity. (94 mins.)
 
34.
Final Fantasy: The Spirits Within (2001)
    1 2 3 4 5 6 7 8 9 10 6.4/10 X  
A scientist makes a last stand on Earth with the help of a ragtag team of soldiers against an invasion of alien phantoms. (106 mins.)
 
35.
Invasion of the Body Snatchers (1956)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates. (80 mins.)
Director: Don Siegel
 
36.
Predator (1987)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
A team of commandos on a mission in a Central American jungle find themselves hunted by an extraterrestrial warrior. (107 mins.)
Director: John McTiernan
 
37.
Men in Black (1997)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
A police officer joins a secret organization that polices and monitors extraterrestrial interactions on Earth. (98 mins.)
 
38.
Independence Day (1996)
    1 2 3 4 5 6 7 8 9 10 6.9/10 X  
The aliens are coming and their goal is to invade and destroy Earth. Fighting superior technology, mankind's best weapon is the will to survive. (145 mins.)
Director: Roland Emmerich
 
39.
They Live (1988)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
A drifter discovers a pair of sunglasses that allow him to wake up to the fact that aliens have taken over the Earth. (93 mins.)
Director: John Carpenter
 
40.
Time Masters (1982)
    1 2 3 4 5 6 7 8 9 10 7.5/10 X  
Piel, a 7 or 8 year old boy, is alone on the desert planet Perdide, only survivor of an attack by giant hornets... (78 mins.)
Director: René Laloux
 
41.
Solaris (1972)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
A psychologist is sent to a station orbiting a distant planet in order to discover what has caused the crew to go insane. (167 mins.)
 
42.
The Thing from Another World (1951)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
Scientists and American Air Force officials fend off a blood-thirsty alien organism while at a remote arctic outpost. (87 mins.)
Director: Christian Nyby
 
43.
Star Trek II: The Wrath of Khan (1982)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
With the assistance of the Enterprise crew, Admiral Kirk must stop an old nemesis, Khan Noonien Singh, from using the life-generating Genesis Device as the ultimate weapon. (113 mins.)
Director: Nicholas Meyer
 
44.
The Blob (1958)
    1 2 3 4 5 6 7 8 9 10 6.4/10 X  
An alien lifeform consumes everything in its path as it grows and grows. (86 mins.)
 
45.
Invaders from Mars (1953)
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  
A young boy learns that space aliens are taking over the minds of earthlings. (78 mins.)
 
46.
The Hitchhiker's Guide to the Galaxy (2005)
    1 2 3 4 5 6 7 8 9 10 6.8/10 X  
Mere seconds before the Earth is to be demolished by an alien construction crew, journeyman Arthur Dent is swept off the planet by his friend Ford Prefect, a researcher penning a new edition of "The Hitchhiker's Guide to the Galaxy." (109 mins.)
Director: Garth Jennings
 
47.
Galaxy Quest (1999)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
The alumni cast of a space opera television series have to play their roles as the real thing when an alien race needs their help. (102 mins.)
Director: Dean Parisot
 
48.
Close Encounters of the Third Kind (1977)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
After an encounter with U.F.O.s, a line worker feels undeniably drawn to an isolated area in the wilderness where something spectacular is about to happen. (137 mins.)
 
49.
Mars Attacks! (1996)
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  
Earth is invaded by Martians with unbeatable weapons and a cruel sense of humor. (106 mins.)
Director: Tim Burton
 
50.
Village of the Damned (1960)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
In the English village of Midwich, the blonde-haired, glowing-eyed children of uncertain paternity prove to have frightening powers. (77 mins.)
Director: Wolf Rilla