55		The Thing (Horror, Mystery, Sci-Fi, 2011)
50		The Faculty (Horror, Mystery, Sci-Fi, 1998)
50		Five Million Years to Earth (Horror, Mystery, Sci-Fi, 1967)
49		The Thing (Horror, Mystery, Sci-Fi, 1982)
48		Strange Invaders (Horror, Mystery, Sci-Fi, 1983)
48		Without Warning (Sci-Fi, Horror, 1980)
47		Extraterrestrial (Horror, Sci-Fi, 2014)
47		The Man from Planet X (Horror, Romance, Sci-Fi, 1951)
46		Creature (Horror, Sci-Fi, 1985)
46		Lifeforce (Action, Horror, Sci-Fi, 1985)
45		Shock Waves (Horror, Mystery, Sci-Fi, 1977)
45		Unearthed (Horror, Mystery, Sci-Fi, 2007)
45		Die, Monster, Die! (Mystery, Horror, Sci-Fi, 1965)
45		Alien (Horror, Sci-Fi, 1979)
45		The Body Stealers (Horror, Mystery, Sci-Fi, 1969)
45		Island of the Burning Damned (Horror, Mystery, Sci-Fi, 1967)
45		Headspace (Horror, Mystery, Sci-Fi, 2005)
45		This Island Earth (Horror, Mystery, Sci-Fi, 1955)
45		Ticks (Horror, Sci-Fi, 1993)
44		The Supernaturals (Horror, Mystery, Sci-Fi, 1986)
44		Brain Dead (Horror, Mystery, Sci-Fi, 1990)
43		Decoder (Horror, Mystery, Sci-Fi, 1984)
43		Prophecy (Sci-Fi, Horror, 1979)
43		Impulse (Horror, Mystery, Sci-Fi, 1984)
43		Videodrome (Horror, Mystery, Sci-Fi, 1983)
42		Moontrap (Horror, Sci-Fi, 1989)
42		Altered (Horror, Sci-Fi, Thriller, 2006)
42		Death Street USA (Action, Sci-Fi, Horror, 1988)
42		The Terror Within (Horror, Sci-Fi, 1989)
42		Strange Behavior (Horror, Mystery, Sci-Fi, 1981)
42		Aliens vs. Predator: Requiem (Action, Horror, Sci-Fi, 2007)
42		The Curse of Frankenstein (Horror, Sci-Fi, 1957)
42		Halloween III: Season of the Witch (Horror, Mystery, Sci-Fi, 1982)
42		Pitch Black (Horror, Sci-Fi, 2000)
42		AVP: Alien vs. Predator (Action, Horror, Sci-Fi, 2004)
42		Alien Abduction (Horror, Sci-Fi, Thriller, 2014)
42		I Married a Monster from Outer Space (Horror, Sci-Fi, 1958)
41		Predator 2 (Action, Horror, Sci-Fi, 1990)
41		Invaders from Mars (Horror, Sci-Fi, 1986)
41		The Relic (Horror, Mystery, Sci-Fi, 1997)
40		Chemical Wedding (Horror, Mystery, Sci-Fi, 2008)
40		Shadowglade (Horror, Mystery, Sci-Fi, 2015)
40		Scourge (Horror, Mystery, Sci-Fi, 2008)
40		Disturbing Behavior (Horror, Mystery, Sci-Fi, 1998)
40		Rip Cage (Horror, Mystery, Sci-Fi, 2007)
40		Altitude (Horror, Mystery, Sci-Fi, 2010)
40		An Incident at Bridgeville (Horror, Mystery, Sci-Fi, 2005)
40		Cube Zero (Horror, Mystery, Sci-Fi, 2004)
40		Dreamland (Sci-Fi, Horror, Mystery, 2007)
40		Castle of Evil (Horror, Mystery, Sci-Fi, 1966)
40		The Vulture (Horror, Mystery, Sci-Fi, 1966)
40		Alien³ (Action, Horror, Sci-Fi, 1992)
40		The Deadly Spawn (Horror, Sci-Fi, 1983)
40		Evidence (Horror, Mystery, Sci-Fi, 2012)
40		Chernobyl Diaries (Horror, Mystery, Sci-Fi, 2012)
40		Apollo 18 (Horror, Mystery, Sci-Fi, 2011)
40		Point of No Return (Horror, Mystery, Sci-Fi, 1976)
40		The Jade Mask (Horror, Mystery, Sci-Fi, 1945)
40		The Bay (Horror, Mystery, Sci-Fi, 2012)
40		Crawlspace (Horror, Mystery, Sci-Fi, 2012)
40		Flight 7500 (Horror, Mystery, Sci-Fi, 2014)
40		The Return of Doctor X (Horror, Mystery, Sci-Fi, 1939)
40		Devil's Pass (Horror, Mystery, Sci-Fi, 2013)
40		The Legend of Cooley Moon (Horror, Mystery, Sci-Fi, 2012)
40		Bug (Sci-Fi, Horror, Mystery, 1975)
40		The Bermuda Triangle (Horror, Sci-Fi, Mystery, 1978)
40		The Stepford Wives (Horror, Mystery, Sci-Fi, 1975)
40		Quarantine 2: Terminal (Horror, Mystery, Sci-Fi, 2011)
39		Xtro (Horror, Sci-Fi, 1982)
38		Alien: Resurrection (Action, Horror, Sci-Fi, 1997)
38		Dark Breed (Action, Horror, Sci-Fi, 1996)
38		Predator (Action, Horror, Sci-Fi, 1987)
38		The Dark (Horror, Sci-Fi, 1979)
37		Outpost: Rise of the Spetsnaz (Action, Horror, Sci-Fi, 2013)
37		The Maze Runner (Action, Mystery, Sci-Fi, 2014)
37		Species II (Action, Horror, Sci-Fi, 1998)
37		The Blob (Horror, Sci-Fi, 1958)
37		Beyond the Dark (Horror, Sci-Fi, Thriller, 2014)
37		Attack of the 50 Foot Woman (Horror, Sci-Fi, 1958)
37		The Earth Dies Screaming (Horror, Sci-Fi, 1964)
37		Impostor (Drama, Mystery, Sci-Fi, 2001)
37		Alien Factor 2: The Alien Rampage (Horror, Sci-Fi, 2001)
37		It Came from Outer Space (Horror, Sci-Fi, 1953)
37		Fiend Without a Face (Horror, Sci-Fi, 1958)
37		Under the Skin (Drama, Horror, Sci-Fi, 2013)
37		Dreamcatcher (Drama, Horror, Sci-Fi, 2003)
37		Horror Express (Horror, Sci-Fi, 1972)
37		Death House (Action, Horror, Sci-Fi, 1987)
37		Plan 9 from Outer Space (Horror, Sci-Fi, 1959)
37		The Brain Eaters (Sci-Fi, Horror, 1958)
37		They Live (Horror, Sci-Fi, Thriller, 1988)
37		Rejuvenatrix (Horror, Sci-Fi, 1988)
37		Invisible Invaders (Sci-Fi, Horror, 1959)
37		Not of This Earth (Horror, Sci-Fi, 1957)
37		The Whisperer in Darkness (Mystery, Sci-Fi, Thriller, 2011)
37		The Kindred (Horror, Sci-Fi, Thriller, 1987)
37		The Brain (Horror, Sci-Fi, 1988)
36		Syngenor (Horror, Sci-Fi, 1990)
36		The Orbitrons (Horror, Sci-Fi, 1990)
36		The Terror Within II (Horror, Sci-Fi, 1991)
35		Body Snatchers (Sci-Fi, Horror, Thriller, 1993)
35		Return of the Living Dead III (Horror, Romance, Sci-Fi, 1993)
35		Circle (Drama, Horror, Mystery, Sci-Fi, 2015)
35		Arrival (Drama, Mystery, Sci-Fi, 2016)
35		Godzilla 1985 (Action, Horror, Sci-Fi, 1984)
35		Nightmares (Horror, Sci-Fi, 1983)
35		Leviathan (Adventure, Horror, Mystery, Sci-Fi, 1989)
35		10 Cloverfield Lane (Drama, Horror, Mystery, Sci-Fi, 2016)
35		Pandorum (Action, Horror, Mystery, Sci-Fi, 2009)
35		Seedpeople (Horror, Sci-Fi, 1992)
35		The Law (Adventure, Horror, Sci-Fi, 1992)
34		Not Like Us (Horror, Sci-Fi, 1995)
34		Godzilla vs. Destoroyah (Action, Horror, Sci-Fi, 1995)
34		Outlander (Action, Adventure, Sci-Fi, 2008)
34		Legion of the Night (Action, Horror, Sci-Fi, 1995)
34		2001: A Space Odyssey (Adventure, Mystery, Sci-Fi, 1968)
34		Class of 1999 II: The Substitute (Action, Horror, Sci-Fi, 1994)
34		Swamp Thing (Horror, Sci-Fi, 1982)
34		The Puppet Masters (Horror, Sci-Fi, Thriller, 1994)
34		Village of the Damned (Horror, Sci-Fi, Thriller, 1995)
33		The Quatermass Conclusion (Drama, Mystery, Sci-Fi, 1979)
33		Island Claws (Horror, Sci-Fi, 1980)
33		Horror Hotel the Movie (Horror, Sci-Fi, 2016)
33		Star Trek: The Motion Picture (Adventure, Mystery, Sci-Fi, 1979)
33		Event Horizon (Horror, Sci-Fi, Thriller, 1997)
33		28 Days Later... (Drama, Horror, Sci-Fi, 2002)
33		Frankenstein (Drama, Horror, Sci-Fi, 1931)
33		Contact (Drama, Mystery, Sci-Fi, 1997)
33		Polymorph (Action, Horror, Sci-Fi, 1996)
32		Zombi 3 (Action, Horror, Sci-Fi, 1988)
32		Monkey Shines (Drama, Horror, Sci-Fi, 1988)
32		Alien Exorcism (Mystery, Sci-Fi, Thriller, 2011)
32		The Blob (Horror, Sci-Fi, Thriller, 1988)
32		House of Frankenstein (Fantasy, Horror, Sci-Fi, 1944)
32		Savage (Horror, Sci-Fi, Thriller, 2011)
32		Night Wars (Horror, Sci-Fi, War, 1988)
32		Pulse (Horror, Sci-Fi, 1988)
32		Deep Space (Horror, Sci-Fi, 1988)
32		House of Dracula (Fantasy, Horror, Sci-Fi, 1945)
32		The Nest (Horror, Sci-Fi, 1988)
32		Cameron's Closet (Horror, Sci-Fi, 1988)
32		Transformations (Horror, Sci-Fi, 1988)
32		The Creeping Flesh (Horror, Sci-Fi, 1973)
32		Pulse Pounders (Fantasy, Horror, Sci-Fi, 1988)
32		DeepStar Six (Action, Horror, Sci-Fi, 1989)
32		Phantom from Space (Horror, Sci-Fi, 1953)
32		Garden of the Dead (Sci-Fi, Horror, 1972)
32		Watchers (Action, Horror, Sci-Fi, 1988)
32		Primal Rage (Horror, Sci-Fi, Thriller, 1988)
32		Slugs (Horror, Sci-Fi, 1988)
32		Lone Wolf (Horror, Sci-Fi, 1988)
32		Five (Drama, Horror, Sci-Fi, 1951)
32		Unaware (Horror, Sci-Fi, Thriller, 2010)
32		Invasion of the Bee Girls (Horror, Sci-Fi, 1973)
32		The Thing from Another World (Horror, Sci-Fi, 1951)
32		State of Emergency (Horror, Sci-Fi, Thriller, 2011)
32		The Returned (Drama, Horror, Sci-Fi, 2013)
32		Resident Evil: Red Falls (Action, Horror, Sci-Fi, 2013)
32		The Last Days on Mars (Horror, Sci-Fi, Thriller, 2013)
32		Ombis: Alien Invasion (Action, Horror, Sci-Fi, 2013)
32		Dark Skies (Horror, Sci-Fi, Thriller, 2013)
32		The Devil in White (Horror, Sci-Fi, 2014)
32		Spring (Horror, Romance, Sci-Fi, 2014)
32		Extinction (Drama, Horror, Sci-Fi, 2015)
32		Area 51 (Horror, Sci-Fi, Thriller, 2015)
32		Dead Rising: Watchtower (Action, Horror, Sci-Fi, 2015)
32		Debug (Horror, Sci-Fi, 2014)
32		The Brain Leeches (Horror, Sci-Fi, 1978)
32		Man Made Monster (Drama, Horror, Sci-Fi, 1941)
32		The Caller (Mystery, Sci-Fi, Thriller, 1987)
32		Alien Prey (Horror, Sci-Fi, 1977)
32		Prometheus (Adventure, Mystery, Sci-Fi, 2012)
32		The Beast from 20,000 Fathoms (Adventure, Horror, Sci-Fi, 1953)
32		Death Run (Action, Horror, Sci-Fi, 1987)
32		Frankenstein Meets the Wolf Man (Fantasy, Horror, Sci-Fi, 1943)
32		Dust (Drama, Horror, Sci-Fi, 2012)
32		Resident Evil: Retribution (Action, Horror, Sci-Fi, 2012)
32		Dead Season (Horror, Sci-Fi, 2012)
32		The Alien Factor (Horror, Sci-Fi, 1978)
32		The Curse (Sci-Fi, Horror, 1987)
32		Project Nightmare (Horror, Sci-Fi, Thriller, 1987)
32		The Prometheus Project (Horror, Sci-Fi, 2010)
32		The Last Man on Earth (Horror, Sci-Fi, 1964)
32		Resident Evil (Action, Horror, Sci-Fi, 2002)
32		The Remnant (Horror, Sci-Fi, Thriller, 2001)
32		Jason X (Action, Horror, Sci-Fi, 2001)
32		The X Files (Drama, Mystery, Sci-Fi, 1998)
32		Signs (Drama, Mystery, Sci-Fi, 2002)
32		Blood of the Beast (Horror, Sci-Fi, 2003)
32		Queen of Blood (Horror, Sci-Fi, 1966)
32		Galaxy of Terror (Action, Adventure, Horror, Sci-Fi, 1981)
32		20 Million Miles to Earth (Fantasy, Horror, Sci-Fi, 1957)
32		Endangered Species (Horror, Sci-Fi, Thriller, 2003)
32		The Unknown Terror (Horror, Sci-Fi, 1957)
32		How to Make a Monster (Horror, Sci-Fi, 1958)
32		Varan the Unbelievable (Horror, Sci-Fi, 1962)
32		Sphere (Drama, Mystery, Sci-Fi, 1998)
32		Curse of the Faceless Man (Adventure, Horror, Sci-Fi, 1958)
32		Species (Action, Horror, Romance, Sci-Fi, 1995)
32		The Monster of Piedras Blancas (Horror, Sci-Fi, 1959)
32		Murder by Phone (Horror, Thriller, Mystery, Sci-Fi, 1982)
32		Reptilicus (Action, Horror, Sci-Fi, 1961)
32		It! The Terror from Beyond Space (Horror, Sci-Fi, 1958)
32		Progeny (Horror, Sci-Fi, Thriller, 1998)
32		The Day of the Triffids (Horror, Sci-Fi, 1962)
32		Frankenstein 1970 (Horror, Sci-Fi, 1958)
32		Hand of Death (Horror, Sci-Fi, 1962)
32		The Twilight People (Adventure, Horror, Sci-Fi, 1972)
32		The Monster That Challenged the World (Horror, Sci-Fi, 1957)
32		Children of the X-Files (Horror, Sci-Fi, 2009)
32		UFO Kidnapped (Adventure, Sci-Fi, 1983)
32		Alien Raiders (Action, Horror, Sci-Fi, 2008)
32		The X Files: I Want to Believe (Drama, Mystery, Sci-Fi, 2008)
32		Creature with the Atom Brain (Crime, Horror, Sci-Fi, 1955)
32		The Fourth Kind (Mystery, Sci-Fi, Thriller, 2009)
32		The Resurrection of Zachary Wheeler (Sci-Fi, Mystery, Thriller, 1971)
32		The Fly II (Horror, Sci-Fi, 1989)
32		The Manster (Horror, Sci-Fi, 1959)
32		Hunting Grounds (Horror, Sci-Fi, 2009)
32		Millennium (Drama, Mystery, Sci-Fi, 1989)
32		The Quatermass Xperiment (Horror, Sci-Fi, 1955)
32		Mad Doctor of Blood Island (Adventure, Horror, Sci-Fi, 1968)
32		Attack of the Crab Monsters (Horror, Sci-Fi, 1957)
32		Driller (Horror, Sci-Fi, 2006)
32		Stomp! Shout! Scream! (Music, Horror, Sci-Fi, 2005)
32		Purple Glow (Horror, Sci-Fi, 2005)
32		Enemy from Space (Sci-Fi, Horror, 1957)
32		Resident Evil: Apocalypse (Action, Horror, Sci-Fi, 2004)
32		The Zombie Diaries (Horror, Sci-Fi, 2006)
32		Subject 87 (Horror, Sci-Fi, 2007)
32		Goke, Body Snatcher from Hell (Horror, Sci-Fi, 1968)
32		Godzilla, King of the Monsters! (Action, Horror, Sci-Fi, 1956)
32		Flight of the Living Dead (Action, Horror, Sci-Fi, 2007)
32		It Conquered the World (Horror, Sci-Fi, Thriller, 1956)

Notes: Movies similar to Demonwarp, Movies like Demonwarp, Horror, Mystery, Sci-Fi, Emmett Alston, George Kennedy, David Michael O'Neill, Pamela Gilbert, Billy Jayne, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities