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The Best Documentaries About Aliens

Updated September 14, 2021 5.5k votes 3k voters 366.7k views33 items

List RulesVote up your favorite documentaries about aliens, UFOs, and life in worlds beyond.

Here is a list of documentaries about aliens ranked by the community. This list includes popular and recognizable titles, along with a lot of independent films about aliens and UFO sightings. What are the best documentaries about aliens? Vote on the films below to find out, you might even be able to watch some of them on YouTube and Netflix.

As you vote, the order of the list will be changed to see which documentary about aliens comes out on top. If you don't see your favorite on the list, add it along with the titles below so that others may vote on it, as well. This list currently includes titles such as Out of the Blue, with producers traveling around the world to investigate some of the most famous UFO events on record.

Documentaries are nonfiction and made with the intention of displaying reality for historical purposes and to educate those watching the film. Most documentaries are driven by independent filmmakers and those passionate about the topics they are portraying. This is especially true for documentaries about aliens, which often make incredible claims and are filled with passion.

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  • 1
    470
    79

    Unacknowledged

    2017

    ActorsRichard Doty, Giancarlo Esposito, Steven M. Greer

    Directed byMichael Mazzola

  • 2
    555
    123

    ActorsPeter Coyote, Amir D. Aczel, Bernhard Haisch

    Directed byBoris Zubov, Tim Coleman, James Fox

  • 3

    ActorsSeth Adams, Steve Allen, Kenneth Arnold

    Directed byJames Fox

  • 4

    ActorsSteven Spielberg, David Duchovny, Robert Wise

    Directed byChris Wyatt

  • 5
    174
    44

    Project Blue Book

    2013
  • 6
    213
    66

    UFO: the Secret NASA Transmission

    2001

    ActorsMartyn Stubbs, Graham W. Birdsall

    Directed byGraham W. Birdsall

  • 7
    113
    16

    I Believe in UFOs

    2010
  • 8
    139
    31

    E.T. Contact They are here

    2017

    Directed byCaroline Cory

  • 9
    120
    21

    UFO Secret: Tunguska: The Russian Roswell

    2006

    Directed byElliot Halmoff

  • 10
    156
    58

    ActorsCorrado Balducci, Stephen Bassett, Graham Bethune

    Directed byAnthony Tribune Miles

  • 11
    116
    36

    The Day Before Disclosure

    2010

    ActorsTerje Toftenes, Edgar D. Mitchell, Steven M. Greer

    Directed byTerje Toftenes

  • 12
    129
    50

    Thrive

    2010

    Directed byFoster Gamble, Steve Gagné, Kimberly Carter Gamble

  • 13
    94
    27

    The Disclosure Project Witness Testimony

    2006
  • 14

    Directed byLaurent Basset

  • 15
    67
    16

    ActorsGeorge Lucas, Michio Kaku, Wayne Barlowe, Jamie Haines

  • 16

    ActorsGeorge Abbey, Ken Bowersox, Cady Coleman

    Directed byClare Lewins

  • 17
    100
    58

    Shag Harbour 1967 Incident

    2011
  • 18
    71
    37

    Flying Saucers and Science

    2012
  • 19
    92
    58

    The Billy Meier Story

    2009
  • 20
    59
    28

    Secrets About Men in Black

    2012
  • 21
    42
    12

    Secret Space

    2005

    Directed byChris Everard

  • 22
    81
    50

    UFOs: It Has Begun

    1979

    ActorsWilliam Coleman, L. Michael Drummond, José Ferrer

    Directed byRay Rivas

  • 23

    ActorsMilla Jovovich, Elias Koteas, Will Patton, Enzo Cilenti, Hakeem Kae-Kazim

    Directed byOlatunde Osunsanmi

    More The Fourth Kind 

    #382 of 743 The Best Horror Movies Of All Time#16 of 85 The Most Horrifying Found-Footage Movies

  • 24
    62
    38

    Citizen Hearing On UFO Disclosure

    2013
  • 25
    57
    42

    Ancient Aliens Debunked

    2013

    ActorsChris White, Michael Heiser

    Directed byChris White