44		The Mad Doctor of Market Street (Comedy, Drama, Horror, Sci-Fi, 1942)
44		Abbott and Costello Meet Frankenstein (Comedy, Fantasy, Horror, Sci-Fi, 1948)
42		Bride of Frankenstein (Comedy, Drama, Horror, Sci-Fi, 1935)
40		Hamlet A.D.D. (Animation, Comedy, Fantasy, Sci-Fi, 2014)
40		The Bowery Boys Meet the Monsters (Horror, Comedy, Sci-Fi, 1954)
40		Die You Zombie Bastards! (Comedy, Fantasy, Horror, Sci-Fi, 2005)
40		Man's Best Friend (Comedy, Horror, Sci-Fi, 1993)
40		Waxwork II: Lost in Time (Comedy, Fantasy, Horror, Sci-Fi, 1992)
40		The Fall of the Louse of Usher: A Gothic Tale for the 21st Century (Comedy, Fantasy, Horror, Sci-Fi, 2002)
40		Potpourri (Comedy, Fantasy, Horror, Sci-Fi, 2011)
40		Saturday the 14th (Comedy, Fantasy, Horror, Sci-Fi, 1981)
40		Coyote (Comedy, Fantasy, Horror, Sci-Fi, 2014)
37		Abbott and Costello Meet the Invisible Man (Comedy, Horror, Sci-Fi, 1951)
36		The Invisible Man (Comedy, Horror, Sci-Fi, 1933)
35		Doctor X (Comedy, Crime, Horror, Sci-Fi, 1932)
35		The Naked Monster (Comedy, Horror, Sci-Fi, 2005)
35		Monster in the Closet (Comedy, Horror, Sci-Fi, 1986)
35		Spider Baby or, The Maddest Story Ever Told (Comedy, Horror, Sci-Fi, 1967)
35		Beyond Re-Animator (Comedy, Crime, Horror, Sci-Fi, 2003)
35		The Human Beeing (Comedy, Horror, Sci-Fi, 2002)
35		The Age of Insects (Sci-Fi, Comedy, Horror, 1990)
35		Ghostbusters (Action, Comedy, Fantasy, Sci-Fi, 2016)
35		Top of the Food Chain (Comedy, Horror, Sci-Fi, 1999)
35		Bride of Re-Animator (Comedy, Horror, Sci-Fi, 1989)
35		Ghostbusters II (Action, Comedy, Fantasy, Sci-Fi, 1989)
35		Return of the Killer Tomatoes! (Comedy, Horror, Sci-Fi, 1988)
35		Return of the Ghostbusters (Action, Comedy, Fantasy, Sci-Fi, 2007)
35		Revenge of the Zombies (Adventure, Comedy, Horror, Sci-Fi, 1943)
35		While Nero Fiddled (Adventure, Comedy, Fantasy, Sci-Fi, 1944)
34		The Hidden Hand (Comedy, Horror, Mystery, Sci-Fi, 1942)
32		Back to the Future (Adventure, Comedy, Sci-Fi, 1985)
31		Mothman (Comedy, Drama, Horror, Sci-Fi, 2000)
31		Abbott and Costello Go to Mars (Comedy, Sci-Fi, Fantasy, 1953)
31		Zombieland (Adventure, Comedy, Horror, Sci-Fi, 2009)
31		Telling Tales (Comedy, Fantasy, Romance, Sci-Fi, 2015)
31		Abbott and Costello Meet Dr. Jekyll and Mr. Hyde (Comedy, Horror, Mystery, Sci-Fi, 1953)
31		About Time (Comedy, Drama, Fantasy, Sci-Fi, 2013)
30		Nosferatu vs. Father Pipecock & Sister Funk (Adventure, Comedy, Fantasy, Sci-Fi, 2014)
30		S1m0ne (Comedy, Drama, Fantasy, Sci-Fi, 2002)
30		Cultivision (Collapsing Stars) (Sci-Fi, Comedy, Fantasy, 2002)
30		Flying Saucer Rock 'N' Roll (Adventure, Comedy, Horror, Sci-Fi, 2006)
30		Eight Legged Freaks (Action, Comedy, Horror, Sci-Fi, 2002)
30		Don't Ask Don't Tell (Comedy, Fantasy, Sci-Fi, 2002)
30		The Lost Skeleton of Cadavra (Comedy, Horror, Sci-Fi, 2001)
30		Other Halves (Comedy, Horror, Sci-Fi, 2015)
30		Mega Scorpions (Action, Comedy, Horror, Sci-Fi, 2003)
30		50 Kisses (Comedy, Drama, Horror, Sci-Fi, 2014)
30		Cooties (Comedy, Horror, Sci-Fi, 2014)
30		Evil Aliens (Comedy, Horror, Sci-Fi, 2005)
30		The Monster of Phantom Lake (Comedy, Horror, Sci-Fi, 2006)
30		Dead Meat (Action, Comedy, Horror, Sci-Fi, 2004)
30		Frog-g-g! (Sci-Fi, Comedy, Horror, 2004)
30		Undead (Action, Comedy, Horror, Sci-Fi, 2003)
30		Just Visiting (Comedy, Fantasy, Sci-Fi, 2001)
30		Decoys (Comedy, Horror, Sci-Fi, 2004)
30		Jam Films (Comedy, Drama, Fantasy, Sci-Fi, 2002)
30		Acne (Comedy, Horror, Sci-Fi, 2000)
30		Frankenstein and Me (Comedy, Family, Fantasy, Sci-Fi, 1996)
30		Joe's Apartment (Comedy, Fantasy, Musical, Sci-Fi, 1996)
30		La lengua asesina (Comedy, Sci-Fi, Horror, 1996)
30		They Bite (Comedy, Horror, Sci-Fi, 1996)
30		Way Down in Chinatown (Comedy, Horror, Sci-Fi, 2014)
30		Baak bin sing gwan (Action, Comedy, Fantasy, Sci-Fi, 1995)
30		A Flying Jatt (Action, Comedy, Fantasy, Sci-Fi, 2016)
30		That Little Monster (Comedy, Horror, Sci-Fi, 1994)
30		Akumulátor 1 (Comedy, Fantasy, Romance, Sci-Fi, 1994)
30		Jack Brown Genius (Comedy, Fantasy, Sci-Fi, 1996)
30		Deformed Monsters (Comedy, Sci-Fi, Horror, 1997)
30		Bleak Future (Action, Comedy, Horror, Sci-Fi, 1997)
30		Big Monster on Campus (Comedy, Horror, Sci-Fi, 2000)
30		The Specials (Action, Comedy, Fantasy, Sci-Fi, 2000)
30		Citizen Toxie: The Toxic Avenger IV (Action, Comedy, Fantasy, Sci-Fi, 2000)
30		Slither (Comedy, Horror, Sci-Fi, 2006)
30		Beyond Redemption: Space Captain (Adventure, Comedy, Horror, Sci-Fi, 2014)
30		Mystery Men (Action, Comedy, Fantasy, Sci-Fi, 1999)
30		Goodbye, 20th Century (Adventure, Comedy, Fantasy, Sci-Fi, 1998)
30		Meltdown (Comedy, Horror, Sci-Fi, 2014)
30		My Favorite Martian (Comedy, Family, Sci-Fi, 1999)
30		Dyke Hard (Action, Comedy, Horror, Sci-Fi, 2014)
30		Jesus H. Zombie (Comedy, Horror, Sci-Fi, 2006)
30		Detention (Comedy, Horror, Sci-Fi, 2011)
30		Patch Town (Adventure, Comedy, Fantasy, Sci-Fi, 2014)
30		Alien Zombie Invasion (Comedy, Horror, Sci-Fi, 2011)
30		Sleepwalkers (Comedy, Drama, Fantasy, Sci-Fi, 2015)
30		Overtime (Comedy, Horror, Sci-Fi, 2011)
30		Lizard Boy (Action, Comedy, Horror, Sci-Fi, 2011)
30		Zombie Epidemic (Comedy, Horror, Sci-Fi, 2009)
30		Dr. Otto Dekein's Original Design (Comedy, Drama, Fantasy, Sci-Fi, 2009)
30		The Dead Can't Dance (Comedy, Horror, Sci-Fi, 2010)
30		Zombie Abomination: The Italian Zombie Movie - Part 1 (Comedy, Horror, Sci-Fi, 2010)
30		The Night Shift (Adventure, Comedy, Fantasy, Sci-Fi, 2011)
30		Humans vs Zombies (Comedy, Horror, Sci-Fi, 2011)
30		In-lyu-myeol-mang-bo-go-seo (Comedy, Drama, Fantasy, Sci-Fi, 2012)
30		Zombies from Outer Space (Comedy, Horror, Sci-Fi, 2012)
30		Silveraven (Action, Comedy, Fantasy, Sci-Fi, 2012)
30		Earthbound (Comedy, Fantasy, Romance, Sci-Fi, 2012)
30		The Ghastly Love of Johnny X (Comedy, Fantasy, Musical, Sci-Fi, 2012)
30		A Little Bit Zombie (Comedy, Horror, Sci-Fi, 2012)
30		Sweet Prudence and the Erotic Adventure of Bigfoot (Comedy, Horror, Sci-Fi, 2011)
30		Unlucky (Comedy, Fantasy, Sci-Fi, 2011)
30		John Dies at the End (Comedy, Horror, Sci-Fi, 2012)
30		Grabbers (Comedy, Horror, Sci-Fi, 2012)
30		Doctor S Battles the Sex Crazed Reefer Zombies: The Movie (Comedy, Horror, Sci-Fi, 2009)
30		Infestation (Action, Comedy, Horror, Sci-Fi, 2009)
30		Swarm of the Snakehead (Comedy, Horror, Sci-Fi, 2006)
30		Get Pony Boy (Comedy, Horror, Mystery, Sci-Fi, 2007)
30		Revenge of the Spacemen (Comedy, Horror, Sci-Fi, 2014)
30		Zeppo: Sinners from Beyond the Moon! (Comedy, Horror, Sci-Fi, 2007)
30		Poultrygeist: Night of the Chicken Dead (Comedy, Horror, Musical, Sci-Fi, 2006)
30		The Importance of Being Russell (Comedy, Fantasy, Romance, Sci-Fi, 2006)
30		Return to Nuke 'Em High Volume 1 (Comedy, Horror, Sci-Fi, 2013)
30		Khottabych (Adventure, Comedy, Fantasy, Sci-Fi, 2006)
30		Fido (Comedy, Drama, Horror, Sci-Fi, 2006)
30		Black Sheep (Comedy, Horror, Sci-Fi, 2006)
30		Zombie Strippers (Comedy, Horror, Sci-Fi, 2008)
30		S4 (Comedy, Horror, Sci-Fi, 2008)
30		ZMD: Zombies of Mass Destruction (Comedy, Horror, Sci-Fi, 2009)
30		TiMER (Comedy, Drama, Fantasy, Sci-Fi, 2009)
30		Last of the Living (Comedy, Horror, Sci-Fi, 2009)
30		Doghouse (Comedy, Horror, Sci-Fi, 2009)
30		Alien Trespass (Comedy, Horror, Sci-Fi, 2009)
30		Steel of Fire Warriors 2010 A.D. (Action, Comedy, Fantasy, Sci-Fi, 2008)
30		Interplanetary (Comedy, Horror, Sci-Fi, 2008)
30		One-Eyed Monster (Comedy, Horror, Sci-Fi, 2008)
30		Breakfast of Aliens (Comedy, Horror, Sci-Fi, 1993)
30		The Host (Comedy, Drama, Horror, Sci-Fi, 2006)
30		Brainscan (Comedy, Horror, Sci-Fi, 1994)
30		The Return of Captain Invincible (Musical, Fantasy, Comedy, Sci-Fi, 1983)
30		The Toxic Avenger (Action, Comedy, Horror, Sci-Fi, 1984)
30		Nothing Lasts Forever (Comedy, Fantasy, Sci-Fi, 1984)
30		Night of the Comet (Comedy, Horror, Sci-Fi, 1984)
30		Born in Flames (Comedy, Drama, Fantasy, Sci-Fi, 1983)
30		Zapped! (Comedy, Fantasy, Sci-Fi, 1982)
30		Body Melt (Horror, Comedy, Sci-Fi, 1993)
30		Time Bandits (Adventure, Comedy, Fantasy, Sci-Fi, 1981)
30		Modern Problems (Comedy, Fantasy, Sci-Fi, 1981)
30		Blood Suckers from Outer Space (Comedy, Horror, Sci-Fi, 1984)
30		The Return of the Living Dead (Comedy, Horror, Sci-Fi, 1985)
30		Chopping Mall (Comedy, Horror, Sci-Fi, 1986)
30		Critters (Action, Comedy, Horror, Sci-Fi, 1986)
30		Class of Nuke 'Em High (Comedy, Horror, Sci-Fi, 1986)
30		TerrorVision (Comedy, Horror, Sci-Fi, 1986)
30		Fright Show (Horror, Comedy, Sci-Fi, 1985)
30		Re-Animator (Comedy, Horror, Sci-Fi, 1985)
30		The Stuff (Comedy, Horror, Sci-Fi, 1985)
30		Interface (Sci-Fi, Comedy, Horror, 1985)
30		Super Fuzz (Action, Comedy, Fantasy, Sci-Fi, 1980)
30		Attack of the Killer Tomatoes! (Adventure, Comedy, Horror, Sci-Fi, 1978)
30		The Flesh Eaters (Comedy, Horror, Sci-Fi, 1964)
30		Munster, Go Home! (Comedy, Family, Fantasy, Sci-Fi, 1966)
30		Way... Way Out (Comedy, Sci-Fi, 1966)
30		The Wacky World of Dr. Morgus (Comedy, Horror, Sci-Fi, 1962)
30		Invasion of the Saucer Men (Comedy, Horror, Sci-Fi, 1957)
30		The Last Man on Earth (Comedy, Fantasy, Sci-Fi, 1924)
30		The Monster (Comedy, Horror, Mystery, Sci-Fi, 1925)
30		Just Imagine (Comedy, Fantasy, Musical, Sci-Fi, 1930)
30		In Like Flint (Action, Adventure, Comedy, Sci-Fi, 1967)
30		Those Fantastic Flying Fools (Adventure, Comedy, Fantasy, Sci-Fi, 1967)
30		Schlock (Comedy, Horror, Sci-Fi, 1973)
30		The Hidan of Maukbeiangjow (Comedy, Crime, Horror, Sci-Fi, 1973)
30		Piranha (Comedy, Horror, Sci-Fi, 1978)
30		The Thing with Two Heads (Comedy, Sci-Fi, 1972)
30		Beware! The Blob (Comedy, Horror, Sci-Fi, 1972)
30		Barbarella (Adventure, Comedy, Fantasy, Sci-Fi, 1968)
30		Hibernatus (Comedy, Fantasy, Sci-Fi, 1969)
30		The Love Factor (Comedy, Fantasy, Sci-Fi, 1969)
30		Maximum Overdrive (Action, Comedy, Horror, Sci-Fi, 1986)
30		Blood Beach (Comedy, Horror, Sci-Fi, 1980)
30		The Toxic Avenger Part III: The Last Temptation of Toxie (Action, Comedy, Fantasy, Sci-Fi, 1989)
30		Tremors (Comedy, Horror, Sci-Fi, 1990)
30		Frankenhooker (Comedy, Horror, Sci-Fi, 1990)
30		Dr. Caligari (Comedy, Horror, Sci-Fi, 1989)
30		Super Mouse and the Roborats (Action, Comedy, Fantasy, Sci-Fi, 1989)
30		The Toxic Avenger Part II (Action, Comedy, Horror, Sci-Fi, 1989)
30		The Return of Swamp Thing (Sci-Fi, Horror, Comedy, 1989)
30		Alien Space Avenger (Comedy, Horror, Sci-Fi, 1989)
30		Back to the Future Part III (Action, Adventure, Comedy, Sci-Fi, 1990)
30		Class of Nuke 'Em High Part II: Subhumanoid Meltdown (Comedy, Horror, Sci-Fi, 1991)
30		Critters 4 (Comedy, Horror, Sci-Fi, 1992)
30		Les visiteurs (Comedy, Fantasy, Sci-Fi, 1993)
30		The Meteor Man (Action, Comedy, Fantasy, Sci-Fi, 1993)
30		Critters 3 (Comedy, Horror, Sci-Fi, 1991)
30		And You Thought Your Parents Were Weird (Comedy, Family, Fantasy, Sci-Fi, 1991)
30		There's Nothing Out There (Comedy, Horror, Sci-Fi, 1991)
30		The Borrower (Comedy, Horror, Sci-Fi, 1991)
30		Bill & Ted's Bogus Journey (Adventure, Comedy, Fantasy, Sci-Fi, 1991)
30		Meet the Hollowheads (Comedy, Horror, Sci-Fi, 1989)
30		Blobermouth (Comedy, Horror, Sci-Fi, 1991)
30		Little Shop of Horrors (Comedy, Horror, Musical, Sci-Fi, 1986)
30		Critters 2 (Comedy, Horror, Sci-Fi, 1988)
30		Night of the Creeps (Comedy, Horror, Sci-Fi, 1986)
30		*batteries not included (Comedy, Family, Fantasy, Sci-Fi, 1987)
30		Bad Taste (Comedy, Horror, Sci-Fi, 1987)
30		Shock! Shock! Shock! (Adventure, Comedy, Fantasy, Sci-Fi, 1987)
30		Not of This Earth (Comedy, Horror, Sci-Fi, 1988)
30		Return of the Living Dead II (Comedy, Horror, Sci-Fi, 1988)
30		Lobster Man from Mars (Comedy, Horror, Sci-Fi, 1989)
30		The Pink Chiquitas (Comedy, Horror, Sci-Fi, 1987)
30		Killer Klowns from Outer Space (Comedy, Horror, Sci-Fi, 1988)
30		Dead Heat (Action, Comedy, Horror, Sci-Fi, 1988)

Notes: Movies similar to Gildersleeve's Ghost, Movies like Gildersleeve's Ghost, Comedy, Fantasy, Horror, Sci-Fi, Gordon Douglas, Harold Peary, Marion Martin, Richard LeGrand, Amelita Ward, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities