42		Cypher (Mystery, Romance, Sci-Fi, 2002)
40		Unremembered (Mystery, Sci-Fi, 2009)
40		The Man with Nine Lives (Mystery, Sci-Fi, 1940)
40		Grand Tour: Disaster in Time (Mystery, Sci-Fi, 1992)
40		Beyond the Quest (Mystery, Sci-Fi, 2007)
34		2001: A Space Odyssey (Adventure, Mystery, Sci-Fi, 1968)
32		Pig (Drama, Mystery, Sci-Fi, 2011)
32		Five Million Years to Earth (Horror, Mystery, Sci-Fi, 1967)
32		The Body Stealers (Horror, Mystery, Sci-Fi, 1969)
32		The Thirteenth Floor (Mystery, Sci-Fi, Thriller, 1999)
32		The Jacket (Drama, Mystery, Sci-Fi, 2005)
32		Island of the Burning Damned (Horror, Mystery, Sci-Fi, 1967)
31		Castle of Evil (Horror, Mystery, Sci-Fi, 1966)
31		Die, Monster, Die! (Mystery, Horror, Sci-Fi, 1965)
31		The Satan Bug (Crime, Mystery, Sci-Fi, 1965)
31		The Resurrection of Zachary Wheeler (Sci-Fi, Mystery, Thriller, 1971)
31		The Vulture (Horror, Mystery, Sci-Fi, 1966)
30		Panic in the City (Sci-Fi, Thriller, 1968)
30		Total Recall (Action, Adventure, Mystery, Sci-Fi, 2012)
30		Seconds (Sci-Fi, Thriller, 1966)
30		Doomwatch (Mystery, Sci-Fi, Thriller, 1972)
30		Soylent Green (Mystery, Sci-Fi, Thriller, 1973)
30		The Destructors (Sci-Fi, 1968)
30		Arrival (Drama, Mystery, Sci-Fi, 2016)
30		Project M7 (Drama, Sci-Fi, 1953)
29		Twelve Monkeys (Mystery, Sci-Fi, Thriller, 1995)
29		Black Moon (Fantasy, Mystery, Sci-Fi, 1975)
29		Lifespan (Drama, Mystery, Sci-Fi, 1975)
29		The Stepford Wives (Horror, Mystery, Sci-Fi, 1975)
29		The Prestige (Drama, Mystery, Sci-Fi, 2006)
29		Who? (Mystery, Sci-Fi, Thriller, 1975)
29		Colossus: The Forbin Project (Sci-Fi, Thriller, 1970)
29		The Thing (Horror, Mystery, Sci-Fi, 1982)
29		Bug (Sci-Fi, Horror, Mystery, 1975)
29		Operazione Goldman (Adventure, Sci-Fi, 1966)
28		Shock Waves (Horror, Mystery, Sci-Fi, 1977)
28		The Groundstar Conspiracy (Action, Crime, Mystery, Sci-Fi, 1972)
28		Ex Machina (Drama, Mystery, Sci-Fi, 2015)
28		Point of No Return (Horror, Mystery, Sci-Fi, 1976)
28		Welcome to Blood City (Drama, Mystery, Sci-Fi, 1977)
28		Moon (Drama, Mystery, Sci-Fi, 2009)
28		Minority Report (Action, Mystery, Sci-Fi, 2002)
27		Atlas Shrugged: Part I (Drama, Mystery, Sci-Fi, 2011)
27		The Whisperer in Darkness (Mystery, Sci-Fi, Thriller, 2011)
27		Apollo 18 (Horror, Mystery, Sci-Fi, 2011)
27		Quarantine 2: Terminal (Horror, Mystery, Sci-Fi, 2011)
27		Out of the Fog (Fantasy, Mystery, Sci-Fi, 2009)
27		Super 8 (Mystery, Sci-Fi, Thriller, 2011)
27		Area 51 Confidential (Mystery, Sci-Fi, Thriller, 2011)
27		Alien Exorcism (Mystery, Sci-Fi, Thriller, 2011)
27		Paramnesia (Action, Mystery, Sci-Fi, 2011)
27		The Supernaturals (Horror, Mystery, Sci-Fi, 1986)
27		Limitless (Mystery, Sci-Fi, Thriller, 2011)
27		Source Code (Mystery, Sci-Fi, Thriller, 2011)
27		The Thing (Horror, Mystery, Sci-Fi, 2011)
27		2010 (Adventure, Mystery, Sci-Fi, 1984)
27		The I Inside (Mystery, Sci-Fi, Thriller, 2004)
27		Chernobyl Diaries (Horror, Mystery, Sci-Fi, 2012)
27		Spectres (Sci-Fi, Drama, Mystery, 2004)
27		Messengers (Drama, Mystery, Sci-Fi, 2004)
27		I, Robot (Action, Mystery, Sci-Fi, 2004)
27		Altered States of Plaine (Drama, Mystery, Sci-Fi, 2012)
27		The Manchurian Candidate (Drama, Mystery, Sci-Fi, 2004)
27		Paycheck (Action, Mystery, Sci-Fi, 2003)
27		Signs (Drama, Mystery, Sci-Fi, 2002)
27		Xscape (Drama, Mystery, Sci-Fi, 2000)
27		Unbreakable (Drama, Mystery, Sci-Fi, 2000)
27		Travelling Salesman (Drama, Mystery, Sci-Fi, 2012)
27		Ever Since the World Ended (Drama, Mystery, Sci-Fi, 2001)
27		Echoes of Enlightenment (Drama, Mystery, Sci-Fi, 2001)
27		Impostor (Drama, Mystery, Sci-Fi, 2001)
27		K-PAX (Drama, Mystery, Sci-Fi, 2001)
27		Cube Zero (Horror, Mystery, Sci-Fi, 2004)
27		The X Files: I Want to Believe (Drama, Mystery, Sci-Fi, 2008)
27		Missy and the Maxinator (Adventure, Mystery, Sci-Fi, 2009)
27		Impulse (Horror, Mystery, Sci-Fi, 1984)
27		Decoder (Horror, Mystery, Sci-Fi, 1984)
27		The Quiet Earth (Drama, Mystery, Sci-Fi, 1985)
27		Paradise Lost (Drama, Mystery, Sci-Fi, 1999)
27		Space Is the Place (Sci-Fi, Music, 1974)
27		Prometheus (Adventure, Mystery, Sci-Fi, 2012)
27		Strange Invaders (Horror, Mystery, Sci-Fi, 1983)
27		Videodrome (Horror, Mystery, Sci-Fi, 1983)
27		Star Trek: The Motion Picture (Adventure, Mystery, Sci-Fi, 1979)
27		11:59 (Mystery, Sci-Fi, Thriller, 2005)
27		An Incident at Bridgeville (Horror, Mystery, Sci-Fi, 2005)
27		The Quatermass Conclusion (Drama, Mystery, Sci-Fi, 1979)
27		Strange Behavior (Horror, Mystery, Sci-Fi, 1981)
27		Halloween III: Season of the Witch (Horror, Mystery, Sci-Fi, 1982)
27		Knowing (Drama, Mystery, Sci-Fi, 2009)
27		Evidence (Horror, Mystery, Sci-Fi, 2012)
27		Brain Dead (Horror, Mystery, Sci-Fi, 1990)
27		The Scribbler (Mystery, Sci-Fi, Thriller, 2014)
27		Na yeh ling san, ngo joa seung liu Wong Gok hoi wong dai bou dik hung Van (Comedy, Mystery, Sci-Fi, 2014)
27		War Stories (Mystery, Sci-Fi, Thriller, 2009)
27		Predestination (Drama, Mystery, Sci-Fi, 2014)
27		Divergent (Adventure, Mystery, Sci-Fi, 2014)
27		The Maze Runner (Action, Mystery, Sci-Fi, 2014)
27		Flight 7500 (Horror, Mystery, Sci-Fi, 2014)
27		Assumption of Risk (Mystery, Sci-Fi, Thriller, 2014)
27		Coherence (Mystery, Sci-Fi, Thriller, 2013)
27		I'll Follow You Down (Drama, Mystery, Sci-Fi, 2013)
27		Crawlspace (Horror, Mystery, Sci-Fi, 2012)
27		The Children of Terra Firma (Comedy, Mystery, Sci-Fi, 2012)
27		The Bay (Horror, Mystery, Sci-Fi, 2012)
27		Atlas Shrugged II: The Strike (Drama, Mystery, Sci-Fi, 2012)
27		The Legend of Cooley Moon (Horror, Mystery, Sci-Fi, 2012)
27		Frequencies (Mystery, Romance, Sci-Fi, 2013)
27		Devil's Pass (Horror, Mystery, Sci-Fi, 2013)
27		Atlas Shrugged: Who Is John Galt? (Drama, Mystery, Sci-Fi, 2014)
27		51 Degrees North (Drama, Mystery, Sci-Fi, 2015)
27		Iodine (Drama, Mystery, Sci-Fi, 2009)
27		The Return of Doctor X (Horror, Mystery, Sci-Fi, 1939)
27		The Jade Mask (Horror, Mystery, Sci-Fi, 1945)
27		The Bermuda Triangle (Horror, Sci-Fi, Mystery, 1978)
27		Quintet (Drama, Mystery, Sci-Fi, 1979)
27		6 Hours to Live (Drama, Mystery, Sci-Fi, 1932)
27		Blindness (Drama, Mystery, Sci-Fi, 2008)
27		House of Time (Comedy, Mystery, Sci-Fi, 2015)
27		This Island Earth (Horror, Mystery, Sci-Fi, 1955)
27		Narcopolis (Mystery, Sci-Fi, Thriller, 2015)
27		Synchronicity (Mystery, Sci-Fi, Thriller, 2015)
27		Self/less (Action, Mystery, Sci-Fi, 2015)
27		400 Days (Mystery, Sci-Fi, Thriller, 2015)
27		The Fourth Kind (Mystery, Sci-Fi, Thriller, 2009)
27		Shadowglade (Horror, Mystery, Sci-Fi, 2015)
27		The Electronic Monster (Crime, Mystery, Sci-Fi, 1958)
27		Mine Games (Mystery, Sci-Fi, Thriller, 2012)
27		Very Little Time (Fantasy, Mystery, Sci-Fi, 2009)
27		Demonwarp (Horror, Mystery, Sci-Fi, 1988)
27		City of Dark (Drama, Mystery, Sci-Fi, 1997)
27		Cube (Mystery, Sci-Fi, Thriller, 1997)
27		The Caller (Mystery, Sci-Fi, Thriller, 1987)
27		Sphere (Drama, Mystery, Sci-Fi, 1998)
27		The X Files (Drama, Mystery, Sci-Fi, 1998)
27		Sound of My Voice (Drama, Mystery, Sci-Fi, 2011)
27		Contact (Drama, Mystery, Sci-Fi, 1997)
27		The Relic (Horror, Mystery, Sci-Fi, 1997)
27		Second Sight (Comedy, Mystery, Sci-Fi, 1989)
27		Cryptopticon (Crime, Mystery, Sci-Fi, 2010)
27		Kafka (Drama, Mystery, Sci-Fi, 1991)
27		Millennium (Drama, Mystery, Sci-Fi, 1989)
27		Unforgettable (Drama, Mystery, Sci-Fi, 1996)
27		Altitude (Horror, Mystery, Sci-Fi, 2010)
27		Disturbing Behavior (Horror, Mystery, Sci-Fi, 1998)
27		Headspace (Horror, Mystery, Sci-Fi, 2005)
27		Rip Cage (Horror, Mystery, Sci-Fi, 2007)
27		Stolen Life (Animation, Mystery, Sci-Fi, 2007)
27		Unearthed (Horror, Mystery, Sci-Fi, 2007)
27		Disconnect (Drama, Mystery, Sci-Fi, 2010)
27		Scourge (Horror, Mystery, Sci-Fi, 2008)
27		Backlight (Drama, Mystery, Sci-Fi, 2010)
27		Chemical Wedding (Horror, Mystery, Sci-Fi, 2008)
27		Prism (Drama, Mystery, Sci-Fi, 2007)
27		Dreamland (Sci-Fi, Horror, Mystery, 2007)
27		The Faculty (Horror, Mystery, Sci-Fi, 1998)
27		New Rose Hotel (Drama, Mystery, Sci-Fi, 1998)
27		Possible Worlds (Mystery, Sci-Fi, Crime, 2000)
27		The Krone Experiment (Mystery, Romance, Sci-Fi, 2005)
27		The Chinese Room (Mystery, Sci-Fi, Thriller, 2008)
27		Gadkie lebedi (Drama, Mystery, Sci-Fi, 2006)
27		The 6th Day (Action, Mystery, Sci-Fi, 2000)
26		The Angry Red Planet (Adventure, Sci-Fi, 1959)
25		Day of the Animals (Horror, Sci-Fi, Thriller, 1977)
25		Hardwired (Action, Sci-Fi, 2009)
25		Laughing at Danger (Action, Sci-Fi, 1924)
25		The Prometheus Project (Horror, Sci-Fi, 2010)
25		Project Aether (Sci-Fi, 2011)
25		Je t'aime, je t'aime (Drama, Sci-Fi, 1968)
25		They Came from Beyond Space (Adventure, Sci-Fi, 1967)
25		The Degenerates (Sci-Fi, Thriller, 1967)
25		The Terrornauts (Sci-Fi, 1967)
25		Final Approach (Sci-Fi, Thriller, 1991)
25		King Kong Escapes (Adventure, Sci-Fi, 1967)
25		It! (Horror, Sci-Fi, 1967)
25		Battle Beneath the Earth (Sci-Fi, Thriller, 1967)
25		The Day the Fish Came Out (Comedy, Sci-Fi, 1967)
25		Countdown (Sci-Fi, Thriller, 1967)
25		Project: Metalbeast (Horror, Sci-Fi, 1995)
25		Project Grey (Sci-Fi, Thriller, 2007)
25		Television Spy (Drama, Sci-Fi, 1939)
25		The Phantom Creeps (Sci-Fi, 1939)
25		F. P. 1 Doesn't Answer (Fantasy, Sci-Fi, 1933)
25		How to Make a Monster (Horror, Sci-Fi, 1958)
25		Project Almanac (Sci-Fi, Thriller, 2015)
25		Project 12 (Sci-Fi, 2012)
25		The Dinosaur Project (Adventure, Sci-Fi, 2012)
25		Unknown Project (Horror, Mystery, Romance, Sci-Fi, 2013)
25		Able Edwards (Sci-Fi, Drama, 2004)
25		The Manhattan Project (Sci-Fi, Thriller, 1986)
25		Change of Mind (Sci-Fi, Drama, 1969)
25		Journey to the Far Side of the Sun (Sci-Fi, 1969)
25		The Bed Sitting Room (Comedy, Sci-Fi, 1969)
25		The Monitors (Comedy, Sci-Fi, 1969)
25		Moon Zero Two (Crime, Sci-Fi, 1969)
25		Lies Inc. (Sci-Fi, 2004)
25		Armageddon (Action, Sci-Fi, 1969)
25		Henry's Night In (Comedy, Sci-Fi, 1969)
25		Gladiatorerna (Drama, Sci-Fi, 1969)
25		Hello Down There (Comedy, Sci-Fi, 1969)
25		Goke, Body Snatcher from Hell (Horror, Sci-Fi, 1968)
25		Thunderbird 6 (Family, Sci-Fi, 1968)
25		Mission Mars (Sci-Fi, 1968)
25		Brides of Blood (Horror, Sci-Fi, 1968)
25		The Bamboo Saucer (Sci-Fi, 1968)
25		The Illustrated Man (Sci-Fi, 1969)
25		The Power (Thriller, Sci-Fi, 1968)
25		Stereo (Sci-Fi, 1969)
25		2069 A.D. (Comedy, Sci-Fi, 1969)

Notes: Movies similar to Project X, Movies like Project X, Mystery, Sci-Fi, William Castle, Christopher George, Greta Baldwin, Henry Jones, Monte Markham, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities