Alien invasion movies to watch online

Are we alone in the universe? It's one of humanity's big questions, and we often look to the sky in search of an answer. In fiction, sometimes the answer is yes, but chilling, with beings from other planets crossing the universe to conquer Earth. Below, check out a selection of alien invasion movies to watch online.

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Looney Tunes: The Day the Earth Blew Up is a fun animated movie starring two of Warner's most iconic cartoon characters: Daffy Duck and Porky Pig, who must join forces to protect the world from an alien domination plot. A 2D animated film with the Looney Tunes characters may seem like an anachronism in the era of 3D animation with complex textures and style blends. However, classics are classics for a reason, and this movie is full of the zany spirit of the Looney Tunes that has influenced animation for decades (plus, it’s the first fully animated feature with these characters, as films like Space Jam included live-action elements).

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Osiris

Osiris

--/10
1h48min
UR
2025
Action
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Osiris – A science fiction and horror thriller in which a team of Special Forces commandos is abducted by an alien spacecraft and finds itself hunted by a relentless extraterrestrial race. With a practical effects approach inspired by classics like Aliens, the film blends tactical action and suspense in a desperate fight for survival. Starring Linda Hamilton, Max Martini, and Brianna Hildebrand, the production delivers intense sequences and an atmosphere of claustrophobia and tension.

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The War of the Worlds

The War of the Worlds

7/10
1h25min
G
1953
Sci-Fi & Fantasy
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After 'The Day the Earth Stood Still' built the pillars for alien stories in cinemas, the feature film 'The War of the Worlds'--H.G. Wells' story which would later be adapted by Steven Spielberg--helped construct the "big screen" catastrophe of extraterrestrial invasion stories. Under the direction of visionary director Byron Haskin (of the fun 'Robinson Crusoe on Mars'), the feature film plays with the possibilities of alien arrival on Earth and the chaos that would ensue. However, it is good to warn: the production, which is from the early 1950s, is full of simple effects compared to today's films--though still very advanced for the time. It is a production to watch and feel with different eyes.
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Mars Attacks!

Mars Attacks!

6.4/10
1h45min
PG-13
1997
Sci-Fi & Fantasy
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The filmmaker Tim Burton didn't just talk about a man with scissors in his hands, demonic barbers and millionaires who become night-time vigilantes. He also talked about aliens in the hilarious 'Mars Attacks!', a movie that looks like the 1990s and takes advantage of aliens invading Earth with an extremely particular sense of humor. The bold visual, the outrageous humor and the typical weirdness of Burton at the time help to set the tone of the feature film. It also stands out for its star-studded cast with Jack Nicholson (impeccable as President Dale, in one of the strangest roles of his career), Glenn Close, Christina Applegate, Jack Black, Danny DeVito, Martin Short and Michael J. Fox. But beware: you must be open to exaggeration, without getting too attached to the narrative. It must be seen as the outrageous comedy it is, with all its absurdities and weirdness.
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Independence Day

Independence Day

7/10
2h25min
PG-13
1996
Action
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Great example of the disaster movie of the 1990s - and of course American egoism. The script is shallow, there is no character development or very clever solutions. But who needs all that? We have aliens wanting (without much reason) to destroy Earth, resulting in incredible sequences of destruction and all that talk about uniting humanity against the invaders. With popcorn and butter, those are enough reasons for watching this movie.
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