73		Frequency (Crime, Drama, Mystery, Sci-Fi, 2000)
68		I, Robot (Action, Mystery, Sci-Fi, 2004)
66		The Forgotten (Drama, Horror, Mystery, Sci-Fi, 2004)
65		Strange Days (Action, Crime, Drama, Sci-Fi, 1995)
62		The Return of Doctor X (Horror, Mystery, Sci-Fi, 1939)
62		Smilla's Sense of Snow (Action, Drama, Sci-Fi, 1997)
57		Deadly Friend (Drama, Horror, Sci-Fi, 1986)
57		I Origins (Drama, Romance, Sci-Fi, 2014)
57		Silent Running (Drama, Sci-Fi, 1972)
56		Ex Machina (Drama, Mystery, Sci-Fi, 2015)
56		Soldier (Action, Drama, Sci-Fi, 1998)
55		Timebomb (Action, Drama, Sci-Fi, 1991)
55		Disconnect (Drama, Mystery, Sci-Fi, 2010)
55		The 6th Day (Action, Mystery, Sci-Fi, 2000)
55		Dark City (Action, Drama, Fantasy, Sci-Fi, 1998)
54		Brainstorm (Romance, Sci-Fi, Thriller, 1983)
54		Flatliners (Drama, Horror, Sci-Fi, 1990)
54		Sphere (Drama, Mystery, Sci-Fi, 1998)
53		Xscape (Drama, Mystery, Sci-Fi, 2000)
52		Replicant (Action, Sci-Fi, Thriller, 2001)
52		I Am Legend (Drama, Horror, Sci-Fi, 2007)
51		Moon (Drama, Mystery, Sci-Fi, 2009)
50		The Invisible Man Returns (Drama, Horror, Mystery, Sci-Fi, 1940)
50		Possible Worlds (Mystery, Sci-Fi, Crime, 2000)
50		Retroactive (Action, Crime, Drama, Sci-Fi, 1997)
50		The Vampire Bat (Drama, Horror, Mystery, Sci-Fi, 1933)
50		Pig (Drama, Mystery, Sci-Fi, 2011)
50		Minority Report (Action, Mystery, Sci-Fi, 2002)
49		Twelve Monkeys (Mystery, Sci-Fi, Thriller, 1995)
49		Code 46 (Drama, Romance, Sci-Fi, 2003)
49		Willard (Drama, Horror, Sci-Fi, 2003)
49		SOS Coast Guard (Adventure, Romance, Sci-Fi, 1937)
48		Primer (Drama, Sci-Fi, Thriller, 2004)
46		Disturbing Behavior (Horror, Mystery, Sci-Fi, 1998)
46		The Hidden (Action, Crime, Horror, Sci-Fi, 1987)
45		Gui si (Drama, Horror, Mystery, Sci-Fi, 2006)
45		6 Hours to Live (Drama, Mystery, Sci-Fi, 1932)
45		Iodine (Drama, Mystery, Sci-Fi, 2009)
45		Donovan's Echo (Drama, Fantasy, Mystery, Sci-Fi, 2011)
45		City of Dark (Drama, Mystery, Sci-Fi, 1997)
45		Contact (Drama, Mystery, Sci-Fi, 1997)
44		The Last Man on Earth (Horror, Sci-Fi, 1964)
44		A Clockwork Orange (Crime, Drama, Sci-Fi, 1971)
44		The Butterfly Effect 3: Revelations (Crime, Sci-Fi, Thriller, 2009)
44		The Island of Dr. Moreau (Horror, Sci-Fi, Thriller, 1996)
44		The X Files (Drama, Mystery, Sci-Fi, 1998)
44		New Rose Hotel (Drama, Mystery, Sci-Fi, 1998)
44		Paradise Lost (Drama, Mystery, Sci-Fi, 1999)
44		Daybreakers (Action, Horror, Sci-Fi, 2009)
44		Deja Vu (Action, Sci-Fi, Thriller, 2006)
43		Arrival (Drama, Mystery, Sci-Fi, 2016)
43		Kafka (Drama, Mystery, Sci-Fi, 1991)
43		An Incident at Bridgeville (Horror, Mystery, Sci-Fi, 2005)
43		Echoes of Enlightenment (Drama, Mystery, Sci-Fi, 2001)
43		Monkey Shines (Drama, Horror, Sci-Fi, 1988)
43		Unbreakable (Drama, Mystery, Sci-Fi, 2000)
43		Ever Since the World Ended (Drama, Mystery, Sci-Fi, 2001)
43		K-PAX (Drama, Mystery, Sci-Fi, 2001)
43		Impostor (Drama, Mystery, Sci-Fi, 2001)
42		Rip Cage (Horror, Mystery, Sci-Fi, 2007)
42		Midnight Special (Adventure, Drama, Sci-Fi, 2016)
42		Millennium (Drama, Mystery, Sci-Fi, 1989)
42		Soylent Green (Mystery, Sci-Fi, Thriller, 1973)
42		Son of Frankenstein (Sci-Fi, Horror, Drama, 1939)
42		The Prestige (Drama, Mystery, Sci-Fi, 2006)
42		Signs (Drama, Mystery, Sci-Fi, 2002)
42		Source Code (Mystery, Sci-Fi, Thriller, 2011)
41		The Jacket (Drama, Mystery, Sci-Fi, 2005)
41		Watchmen (Action, Drama, Mystery, Sci-Fi, 2009)
41		Dragon Fire (Action, Drama, Sci-Fi, 1993)
41		The Manchurian Candidate (Drama, Mystery, Sci-Fi, 2004)
41		Spectres (Sci-Fi, Drama, Mystery, 2004)
41		Messengers (Drama, Mystery, Sci-Fi, 2004)
41		No Escape (Action, Drama, Sci-Fi, 1994)
40		Predestination (Drama, Mystery, Sci-Fi, 2014)
40		Atlas Shrugged II: The Strike (Drama, Mystery, Sci-Fi, 2012)
40		Control (Crime, Sci-Fi, Thriller, 2004)
40		51 Degrees North (Drama, Mystery, Sci-Fi, 2015)
40		Altered States of Plaine (Drama, Mystery, Sci-Fi, 2012)
40		Blindness (Drama, Mystery, Sci-Fi, 2008)
40		I'll Follow You Down (Drama, Mystery, Sci-Fi, 2013)
40		Criminal (Action, Crime, Drama, Sci-Fi, 2016)
40		Lifespan (Drama, Mystery, Sci-Fi, 1975)
40		Welcome to Blood City (Drama, Mystery, Sci-Fi, 1977)
40		Backlight (Drama, Mystery, Sci-Fi, 2010)
40		The X Files: I Want to Believe (Drama, Mystery, Sci-Fi, 2008)
40		Knowing (Drama, Mystery, Sci-Fi, 2009)
40		Quintet (Drama, Mystery, Sci-Fi, 1979)
40		Atlas Shrugged: Part I (Drama, Mystery, Sci-Fi, 2011)
40		The Quiet Earth (Drama, Mystery, Sci-Fi, 1985)
40		Atlas Shrugged: Who Is John Galt? (Drama, Mystery, Sci-Fi, 2014)
40		Justice Is Mind (Crime, Drama, Mystery, Sci-Fi, 2013)
40		Prism (Drama, Mystery, Sci-Fi, 2007)
40		Travelling Salesman (Drama, Mystery, Sci-Fi, 2012)
40		The Quatermass Conclusion (Drama, Mystery, Sci-Fi, 1979)
40		Sound of My Voice (Drama, Mystery, Sci-Fi, 2011)
40		Gadkie lebedi (Drama, Mystery, Sci-Fi, 2006)
39		The Last Days of Man on Earth (Sci-Fi, Thriller, 1973)
39		Screamers (Sci-Fi, Thriller, 1995)
39		The Leech Woman (Horror, Sci-Fi, 1960)
39		God Told Me To (Crime, Horror, Sci-Fi, 1976)
39		Dr. Jekyll and Mr. Hyde (Horror, Sci-Fi, 1941)
39		The Walking Dead (Crime, Horror, Sci-Fi, 1936)
39		The Curse of Frankenstein (Horror, Sci-Fi, 1957)
39		Mad Max (Action, Adventure, Sci-Fi, 1979)
39		Paycheck (Action, Mystery, Sci-Fi, 2003)
39		Push (Action, Sci-Fi, Thriller, 2009)
38		Cyclone (Action, Sci-Fi, Drama, 1987)
37		The Reconstruction of William Zero (Drama, Sci-Fi, Thriller, 2014)
37		Extracted (Drama, Sci-Fi, 2012)
37		Videodrome (Horror, Mystery, Sci-Fi, 1983)
37		The Moment After II: The Awakening (Drama, Sci-Fi, Thriller, 2006)
37		Je t'aime, je t'aime (Drama, Sci-Fi, 1968)
37		The Giver (Drama, Romance, Sci-Fi, 2014)
36		Returner (Action, Adventure, Sci-Fi, 2002)
36		Blade II (Action, Horror, Sci-Fi, 2002)
35		The Final Cut (Action, Sci-Fi, Thriller, 2004)
35		Powder (Drama, Fantasy, Mystery, Sci-Fi, 1995)
35		The Crimson Ghost (Action, Adventure, Crime, Sci-Fi, 1946)
34		The Crazies (Action, Horror, Sci-Fi, 1973)
34		The Last Island (Drama, Sci-Fi, 1990)
34		BrainWaves (Sci-Fi, Thriller, 1983)
34		Face/Off (Action, Crime, Sci-Fi, 1997)
34		Spring (Horror, Romance, Sci-Fi, 2014)
34		Escape from New York (Action, Sci-Fi, 1981)
34		The Devil-Doll (Sci-Fi, Horror, 1936)
34		Mary Shelley's Frankenstein (Drama, Horror, Romance, Sci-Fi, 1994)
34		Flight to Mars (Sci-Fi, 1951)
34		In Time (Action, Sci-Fi, Thriller, 2011)
34		Death Race (Action, Sci-Fi, Thriller, 2008)
34		Quarantine (Horror, Sci-Fi, Thriller, 2008)
34		Silent Rage (Action, Horror, Sci-Fi, 1982)
33		Passion of Mind (Drama, Mystery, Romance, Sci-Fi, 2000)
33		Incident at Raven's Gate (Drama, Sci-Fi, Thriller, 1988)
33		Metropolis (Animation, Adventure, Drama, Sci-Fi, 2001)
33		The Lost Face (Drama, Horror, Mystery, Sci-Fi, 2001)
33		Gattaca (Drama, Sci-Fi, Thriller, 1997)
33		Cyborg Cop (Action, Sci-Fi, 1993)
33		Eternal Sunshine of the Spotless Mind (Drama, Fantasy, Romance, Sci-Fi, 2004)
32		Cube (Mystery, Sci-Fi, Thriller, 1997)
32		Hysteria (Drama, Sci-Fi, Thriller, 1997)
32		Conceiving Ada (Drama, Fantasy, Sci-Fi, 1997)
32		Heatseeker (Action, Drama, Sci-Fi, 1995)
32		Lunarcop (Action, Drama, Sci-Fi, 1995)
32		Survival Zone (Action, Drama, Sci-Fi, 1983)
32		Volcano (Action, Drama, Sci-Fi, 1997)
32		Devil's Pass (Horror, Mystery, Sci-Fi, 2013)
32		Past Perfect (Action, Drama, Sci-Fi, 1996)
32		Chain Reaction (Action, Drama, Sci-Fi, 1996)
32		Johnny Shortwave (Drama, Sci-Fi, 1996)
32		Virtual Encounters (Drama, Sci-Fi, 1996)
32		Omega Doom (Drama, Sci-Fi, Thriller, 1996)
32		The Relic (Horror, Mystery, Sci-Fi, 1997)
32		Mark's Secret to Eternal Life (Drama, Sci-Fi, 2013)
32		Les mille merveilles de l'univers (Drama, Sci-Fi, 1997)
32		Scourge (Horror, Mystery, Sci-Fi, 2008)
32		Like Cattle Towards Glow (Drama, Sci-Fi, 2015)
32		Epsilon (Sci-Fi, Drama, 1997)
32		Lurid Tales: The Castle Queen (Drama, Fantasy, Sci-Fi, 1997)
32		Strange Behavior (Horror, Mystery, Sci-Fi, 1981)
32		From the Dark (Drama, Horror, Sci-Fi, 2009)
32		Chrysalis (Drama, Horror, Sci-Fi, 2014)
32		The Corridor (Drama, Horror, Sci-Fi, 2010)
32		The Arrival (Horror, Sci-Fi, 1991)
32		Donnie Darko (Drama, Sci-Fi, Thriller, 2001)
32		Point of No Return (Horror, Mystery, Sci-Fi, 1976)
32		Deadland (Action, Drama, Sci-Fi, 2009)
32		The Day of the Dolphin (Drama, Sci-Fi, Thriller, 1973)
32		Certain Justice (Drama, Sci-Fi, 2014)
32		Solaris (Drama, Mystery, Romance, Sci-Fi, 2002)
32		Dr. M (Crime, Drama, Mystery, Sci-Fi, 1990)
32		Coherence (Mystery, Sci-Fi, Thriller, 2013)
32		Change of Mind (Sci-Fi, Drama, 1969)
32		Welcome II the Terrordome (Drama, Sci-Fi, 1995)
32		Castle of Evil (Horror, Mystery, Sci-Fi, 1966)
31		The Fly II (Horror, Sci-Fi, 1989)
31		The Moment After (Drama, Sci-Fi, Thriller, 1999)
31		The Faculty (Horror, Mystery, Sci-Fi, 1998)
31		Yeseuteodei (Action, Crime, Sci-Fi, 2002)
31		The Terror Within (Horror, Sci-Fi, 1989)
31		One Point O (Drama, Horror, Mystery, Sci-Fi, 2004)
31		The Astronaut's Wife (Drama, Sci-Fi, Thriller, 1999)
31		The Thirteenth Floor (Mystery, Sci-Fi, Thriller, 1999)
31		The Last Border - viimeisellä rajalla (Action, Drama, Sci-Fi, 1993)
31		Maxwell's Demon (Drama, Sci-Fi, 1999)
31		Metamorphosis: The Alien Factor (Horror, Sci-Fi, 1990)
31		Paprika (Animation, Adventure, Crime, Sci-Fi, 2006)
31		Bullet Ballet (Crime, Drama, Sci-Fi, 1998)
31		Izo (Action, Drama, Fantasy, Sci-Fi, 2004)
31		Omega Diary (Drama, Sci-Fi, 1999)
31		Total Recall (Action, Sci-Fi, 1990)
31		Woundings (Drama, Sci-Fi, 1998)
30		Grand Tour: Disaster in Time (Mystery, Sci-Fi, 1992)
30		Rain Without Thunder (Drama, Sci-Fi, 1992)
30		Until the End of the World (Action, Drama, Sci-Fi, 1991)
30		Late for Dinner (Drama, Sci-Fi, 1991)
30		Forever Young (Drama, Romance, Sci-Fi, 1992)
30		A.I. Artificial Intelligence (Adventure, Drama, Sci-Fi, 2001)
30		1 and 0 nly (Drama, Fantasy, Mystery, Sci-Fi, 2008)
30		Yesterday Was a Lie (Drama, Music, Mystery, Sci-Fi, 2008)
30		The Nines (Drama, Fantasy, Mystery, Sci-Fi, 2007)
30		A Scanner Darkly (Animation, Drama, Mystery, Sci-Fi, 2006)
30		Resident Evil: Degeneration (Animation, Action, Horror, Sci-Fi, 2008)
30		The Time Traveler's Wife (Drama, Fantasy, Romance, Sci-Fi, 2009)
30		Limen [Omission] (Crime, Drama, Mystery, Sci-Fi, 2012)
30		The Color Out of Space (Drama, Horror, Mystery, Sci-Fi, 2010)
30		Metropia (Animation, Drama, Mystery, Sci-Fi, 2009)
30		9 (Animation, Action, Adventure, Sci-Fi, 2009)
30		The 4th Dimension (Drama, Fantasy, Mystery, Sci-Fi, 2006)
30		Transcendence (Drama, Mystery, Romance, Sci-Fi, 2014)
30		Waiting for the Giants (Drama, Sci-Fi, 2000)
30		Tribulation (Drama, Sci-Fi, Thriller, 2000)
30		Interstellar (Adventure, Drama, Sci-Fi, 2014)
30		Circle (Drama, Horror, Mystery, Sci-Fi, 2015)
30		Cyberon (Action, Drama, Sci-Fi, 2000)
30		Foiled (Action, Drama, Sci-Fi, 2000)
30		28 Days Later... (Drama, Horror, Sci-Fi, 2002)
30		Anthrax (Drama, Sci-Fi, Thriller, 2001)
30		Metal (Drama, Sci-Fi, 2001)
30		10 Cloverfield Lane (Drama, Horror, Mystery, Sci-Fi, 2016)
30		Stranded (Drama, Sci-Fi, 2001)
30		Curse of the Fly (Drama, Horror, Mystery, Sci-Fi, 1965)
30		Air Hawks (Action, Drama, Mystery, Sci-Fi, 1935)
30		A Blind Bargain (Drama, Horror, Mystery, Sci-Fi, 1922)
30		The Abyss (Adventure, Drama, Sci-Fi, 1989)
30		Non-Stop New York (Crime, Drama, Romance, Sci-Fi, 1937)
30		Dr. Cyclops (Adventure, Drama, Horror, Sci-Fi, 1940)
30		Bruce Gentry (Action, Adventure, Crime, Sci-Fi, 1949)
30		Quest for Love (Drama, Mystery, Romance, Sci-Fi, 1971)
30		Last Woman on Earth (Drama, Horror, Mystery, Sci-Fi, 1960)
30		Poison (Drama, Horror, Sci-Fi, 1991)
30		The Unborn (Drama, Horror, Sci-Fi, 1991)

Notes: Movies similar to Unforgettable, Movies like Unforgettable, Drama, Mystery, Sci-Fi, John Dahl, Ray Liotta, Linda Fiorentino, Peter Coyote, Christopher McDonald, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities