99		The Sexplorer (Comedy, Sci-Fi, 1975)
55		Sleeper (Comedy, Sci-Fi, 1973)
50		Hot Tub Time Machine 2 (Comedy, Sci-Fi, 2015)
50		Frequently Asked Questions About Time Travel (Comedy, Sci-Fi, 2009)
49		Amazon Women on the Moon (Comedy, Sci-Fi, 1987)
49		Norman's Awesome Experience (Comedy, Sci-Fi, 1988)
49		Tribulation 99: Alien Anomalies Under America (Comedy, Sci-Fi, 1992)
47		Back to the Future (Adventure, Comedy, Sci-Fi, 1985)
45		Simon (Comedy, Sci-Fi, 1980)
45		The 30 Foot Bride of Candy Rock (Comedy, Sci-Fi, 1959)
45		The Twonky (Comedy, Sci-Fi, 1953)
45		Mutant on the Bounty (Comedy, Sci-Fi, 1989)
45		Meet the Applegates (Comedy, Sci-Fi, 1990)
45		Invasion: Stanford 1991 A.D. (Comedy, Sci-Fi, 1990)
45		Terminal City Ricochet (Comedy, Sci-Fi, 1990)
45		Wooly Booly: Ang classmate kong alien (Comedy, Sci-Fi, 1989)
44		Freaked (Comedy, Sci-Fi, 1993)
44		U.F.O. (Comedy, Sci-Fi, 1993)
44		Coneheads (Comedy, Sci-Fi, 1993)
44		Eat and Run (Comedy, Sci-Fi, 1987)
44		As Time Goes by (Comedy, Sci-Fi, 1988)
44		It Came from Somewhere Else (Comedy, Sci-Fi, 1988)
44		Space Case (Comedy, Sci-Fi, 1992)
44		The Invisible Kid (Comedy, Sci-Fi, 1988)
43		Plan 10 from Outer Space (Comedy, Sci-Fi, 1995)
43		The American Way (Comedy, Sci-Fi, 1986)
43		The Revenge of the Teenage Vixens from Outer Space (Comedy, Sci-Fi, 1985)
43		UFOria (Comedy, Sci-Fi, 1985)
43		The Roly Poly Man (Comedy, Sci-Fi, 1994)
43		Back to the Future Part II (Adventure, Comedy, Sci-Fi, 1989)
43		Hell's Belles (Comedy, Sci-Fi, 1995)
43		Morons from Outer Space (Comedy, Sci-Fi, 1985)
43		The Trouble with Dick (Comedy, Sci-Fi, 1986)
43		Niagaravation (Comedy, Sci-Fi, 1995)
42		Orgazmo (Comedy, Sci-Fi, 1997)
42		Xing ji dun tai (Sci-Fi, Comedy, 1983)
42		The Brother from Another Planet (Comedy, Sci-Fi, 1984)
42		Walkin' on Sunshine: The Movie (Comedy, Sci-Fi, 1997)
42		Mystery Science Theater 3000: The Movie (Comedy, Sci-Fi, 1996)
42		What's Up, Hideous Sun Demon (Comedy, Sci-Fi, 1983)
42		Hyperspace (Sci-Fi, Comedy, 1984)
41		Heartbeeps (Sci-Fi, Comedy, 1981)
41		The Incredible Shrinking Woman (Comedy, Sci-Fi, 1981)
41		Caveman (Comedy, Sci-Fi, 1981)
41		Britannia Hospital (Comedy, Sci-Fi, 1982)
41		I Was a Zombie for the F.B.I. (Comedy, Sci-Fi, 1982)
41		Illegal Alien (Comedy, Sci-Fi, 1982)
41		I epithesi tou gigantiaiou mousaka (Comedy, Sci-Fi, 1999)
41		The Mating Habits of the Earthbound Human (Comedy, Sci-Fi, 1999)
41		Airplane II: The Sequel (Comedy, Sci-Fi, 1982)
41		Virtue (Comedy, Sci-Fi, 1999)
40		The Atomic Kid (Comedy, Sci-Fi, 1954)
40		Serena the Sexplorer (Comedy, Sci-Fi, 2013)
40		Spaced Out (Comedy, Sci-Fi, 1979)
40		Phil the Alien (Comedy, Sci-Fi, 2004)
40		The Noble Experiment (Comedy, Sci-Fi, 1955)
40		Very Close Encounters of the Fourth Kind (Comedy, Sci-Fi, 1978)
40		Absolutely Anything (Comedy, Sci-Fi, 2015)
40		Time Flies (Comedy, Sci-Fi, 1944)
40		When London Sleeps It Came Alive (Comedy, Sci-Fi, 2010)
40		2076 Olympiad (Comedy, Sci-Fi, 1977)
40		End of Days, Inc. (Comedy, Sci-Fi, 2015)
40		Hot Tub Time Machine (Comedy, Sci-Fi, 2010)
40		Child's Play (Comedy, Sci-Fi, 1954)
40		Final Flesh (Comedy, Sci-Fi, 2009)
40		What Planet Are You From? (Comedy, Sci-Fi, 2000)
40		Atop the Fourth Wall: The Movie (Comedy, Sci-Fi, 2015)
40		The Perfect Woman (Comedy, Sci-Fi, 1949)
40		Folklore (Comedy, Sci-Fi, 2012)
40		Her Husband's Affairs (Comedy, Sci-Fi, 1947)
40		Robodoc (Comedy, Sci-Fi, 2009)
40		Superstarlet A.D. (Comedy, Sci-Fi, 2000)
40		Revenge of the Bimbot Zombie Killers (Comedy, Sci-Fi, 2014)
40		Rock Jocks (Comedy, Sci-Fi, 2012)
40		The Killer Robots and the Battle for the Cosmic Potato (Comedy, Sci-Fi, 2009)
40		Probable Robot (Comedy, Sci-Fi, 2015)
40		Hank, Aaron and the Alien from Outer Space (Comedy, Sci-Fi, 2009)
40		Have Rocket -- Will Travel (Comedy, Sci-Fi, 1959)
40		Godzilla 2001 (Comedy, Sci-Fi, 2001)
40		Alien Sex Party (Comedy, Sci-Fi, 2003)
40		Way... Way Out (Comedy, Sci-Fi, 1966)
40		Dr. Goldfoot and the Bikini Machine (Comedy, Sci-Fi, 1965)
40		Visit to a Small Planet (Comedy, Sci-Fi, 1960)
40		The Day the Fish Came Out (Comedy, Sci-Fi, 1967)
40		Gargaroth (Comedy, Sci-Fi, 2004)
40		Uchuujin from Outer Space (Comedy, Sci-Fi, 2007)
40		Meet the Robinsons (Animation, Adventure, Comedy, Sci-Fi, 2007)
40		Evil Alien Conquerors (Comedy, Sci-Fi, 2003)
40		Bill & Ted's Excellent Adventure (Adventure, Comedy, Music, Sci-Fi, 1989)
40		The Three Stooges in Orbit (Comedy, Sci-Fi, 1962)
40		The Road to Hong Kong (Comedy, Sci-Fi, 1962)
40		Evolution (Comedy, Sci-Fi, 2001)
40		Cyxork 7 (Comedy, Sci-Fi, 2006)
40		Alien Autopsy (Comedy, Sci-Fi, 2006)
40		The Last Dudes on Earth (Comedy, Sci-Fi, 2005)
40		Kiss Me Quick! (Comedy, Sci-Fi, 1964)
40		I'll Believe You (Comedy, Sci-Fi, 2006)
40		50,000 B.C. (Before Clothing) (Comedy, Sci-Fi, 1963)
40		From Other Worlds (Comedy, Sci-Fi, 2004)
40		2069 A.D. (Comedy, Sci-Fi, 1969)
40		Horror in the Wind (Comedy, Sci-Fi, 2008)
40		The Thing with Two Heads (Comedy, Sci-Fi, 1972)
40		Repli-Kate (Comedy, Sci-Fi, 2002)
40		The Search for Simon (Comedy, Sci-Fi, 2013)
40		Mister Drake's Duck (Sci-Fi, Comedy, 1951)
40		Space Milkshake (Comedy, Sci-Fi, 2012)
40		Flesh Gordon (Comedy, Sci-Fi, 1974)
40		Dark Star (Comedy, Sci-Fi, 1974)
40		Totò nella luna (Comedy, Sci-Fi, 1958)
40		Transolar Galactica (Comedy, Sci-Fi, 2011)
40		Dr. Dildo's Secret (Comedy, Sci-Fi, 1970)
40		The Animal (Comedy, Sci-Fi, 2001)
40		The Bed Sitting Room (Comedy, Sci-Fi, 1969)
40		Hello Down There (Comedy, Sci-Fi, 1969)
40		The Monitors (Comedy, Sci-Fi, 1969)
40		Henry's Night In (Comedy, Sci-Fi, 1969)
40		Mock Up on Mu (Comedy, Sci-Fi, 2008)
40		Crimes of the Future (Comedy, Sci-Fi, 1970)
40		Target Audience 9.1 (Comedy, Sci-Fi, 2007)
40		Night of the Alien (Comedy, Sci-Fi, 2011)
37		Just Visiting (Comedy, Fantasy, Sci-Fi, 2001)
37		Dr. Plonk (Action, Comedy, Sci-Fi, 2007)
37		Idiocracy (Adventure, Comedy, Sci-Fi, 2006)
36		Sons of Steel (Comedy, Musical, Sci-Fi, 1988)
35		Nu ji xie ren (Action, Comedy, Crime, Sci-Fi, 1991)
35		Daleks' Invasion Earth 2150 A.D. (Family, Sci-Fi, 1966)
35		Star Trek IV: The Voyage Home (Adventure, Comedy, Sci-Fi, 1986)
35		The Time Machine (Adventure, Romance, Sci-Fi, 1960)
34		Strangers in Paradise (Comedy, Musical, Sci-Fi, 1984)
32		Lobster Man from Mars (Comedy, Horror, Sci-Fi, 1989)
32		There's Nothing Out There (Comedy, Horror, Sci-Fi, 1991)
32		The Borrower (Comedy, Horror, Sci-Fi, 1991)
32		Meet the Hollowheads (Comedy, Horror, Sci-Fi, 1989)
32		Rising Storm (Action, Comedy, Sci-Fi, 1989)
32		The Return of Swamp Thing (Sci-Fi, Horror, Comedy, 1989)
32		Suburban Commando (Action, Comedy, Sci-Fi, 1991)
32		Alien Space Avenger (Comedy, Horror, Sci-Fi, 1989)
32		Dr. Caligari (Comedy, Horror, Sci-Fi, 1989)
32		Ghosts with Shit Jobs (Comedy, Drama, Sci-Fi, 2012)
32		A Man Called Nereus (Action, Comedy, Sci-Fi, 2012)
32		Kamillions (Comedy, Romance, Sci-Fi, 1990)
32		The Age of Insects (Sci-Fi, Comedy, Horror, 1990)
32		Frankenhooker (Comedy, Horror, Sci-Fi, 1990)
32		Spaced Invaders (Adventure, Comedy, Sci-Fi, 1990)
32		Class of Nuke 'Em High Part II: Subhumanoid Meltdown (Comedy, Horror, Sci-Fi, 1991)
32		Second Sight (Comedy, Mystery, Sci-Fi, 1989)
32		Guyver (Sci-Fi, Action, Comedy, 1991)
32		Tremors (Comedy, Horror, Sci-Fi, 1990)
32		Bride of Re-Animator (Comedy, Horror, Sci-Fi, 1989)
32		Paul (Adventure, Comedy, Sci-Fi, 2011)
32		A Boy and His Dog (Comedy, Drama, Sci-Fi, 1975)
32		Critters 3 (Comedy, Horror, Sci-Fi, 1991)
32		April (Comedy, Drama, Sci-Fi, 2014)
32		Trancers (Action, Sci-Fi, 1984)
32		House of Time (Comedy, Mystery, Sci-Fi, 2015)
32		Hibernatus (Comedy, Fantasy, Sci-Fi, 1969)
32		Land of the Lost (Adventure, Comedy, Sci-Fi, 2009)
32		Blobermouth (Comedy, Horror, Sci-Fi, 1991)
32		Special (Comedy, Drama, Sci-Fi, 2006)
32		Slither (Comedy, Horror, Sci-Fi, 2006)
31		Man's Best Friend (Comedy, Horror, Sci-Fi, 1993)
31		Nice Girls Don't Explode (Comedy, Romance, Sci-Fi, 1987)
31		The Pink Chiquitas (Comedy, Horror, Sci-Fi, 1987)
31		Chao ji xue xiao ba wang (Action, Comedy, Sci-Fi, 1993)
31		Remote Control (Comedy, Romance, Sci-Fi, 1988)
31		Body Melt (Horror, Comedy, Sci-Fi, 1993)
31		Making Mr. Right (Comedy, Romance, Sci-Fi, 1987)
31		Bad Taste (Comedy, Horror, Sci-Fi, 1987)
31		Breakfast of Aliens (Comedy, Horror, Sci-Fi, 1993)
31		Hell Comes to Frogtown (Action, Comedy, Sci-Fi, 1988)
31		Real Men (Action, Comedy, Sci-Fi, 1987)
31		Interzone (Action, Comedy, Sci-Fi, 1987)
31		Les visiteurs (Comedy, Fantasy, Sci-Fi, 1993)
31		Return of the Living Dead II (Comedy, Horror, Sci-Fi, 1988)
31		King Lear (Comedy, Drama, Sci-Fi, 1987)
31		Spaceballs (Adventure, Comedy, Sci-Fi, 1987)
31		Project X (Comedy, Drama, Sci-Fi, 1987)
31		Memoirs of an Invisible Man (Comedy, Romance, Sci-Fi, 1992)
31		Critters 2 (Comedy, Horror, Sci-Fi, 1988)
31		Not of This Earth (Comedy, Horror, Sci-Fi, 1988)
31		Killer Klowns from Outer Space (Comedy, Horror, Sci-Fi, 1988)
31		Humanoids from Atlantis (Action, Comedy, Sci-Fi, 1992)
31		My Stepmother Is an Alien (Comedy, Romance, Sci-Fi, 1988)
31		Purple People Eater (Comedy, Family, Sci-Fi, 1988)
31		Return of the Killer Tomatoes! (Comedy, Horror, Sci-Fi, 1988)
31		Critters 4 (Comedy, Horror, Sci-Fi, 1992)
30		Timequest (Sci-Fi, 2000)
30		Back to the Future Part III (Action, Adventure, Comedy, Sci-Fi, 1990)
30		The Truman Show (Comedy, Drama, Sci-Fi, 1998)
30		The Yesterday Machine (Sci-Fi, 1963)
30		Spirits of the Air, Gremlins of the Clouds (Adventure, Sci-Fi, 1989)
30		Prison Planet 2: The Armageddon (Action, Comedy, Sci-Fi, 1994)
30		Pet Shop (Comedy, Family, Sci-Fi, 1994)
30		Junior (Comedy, Romance, Sci-Fi, 1994)
30		Aftershock (Action, Sci-Fi, 1990)
30		Tank Girl (Action, Comedy, Sci-Fi, 1995)
30		Cyborg 2087 (Sci-Fi, 1966)
30		Oblivion (Adventure, Comedy, Sci-Fi, 1994)
30		Bill & Ted's Bogus Journey (Adventure, Comedy, Fantasy, Sci-Fi, 1991)
30		Fright Show (Horror, Comedy, Sci-Fi, 1985)
30		Class of Nuke 'Em High Part 3: The Good, the Bad and the Subhumanoid (Action, Comedy, Sci-Fi, 1994)
30		Chopping Mall (Comedy, Horror, Sci-Fi, 1986)
30		Bing feng: Chong sheng zhi men (Action, Comedy, History, Sci-Fi, 2014)
30		Hamlet A.D.D. (Animation, Comedy, Fantasy, Sci-Fi, 2014)
30		The Return of the Living Dead (Comedy, Horror, Sci-Fi, 1985)
30		Re-Animator (Comedy, Horror, Sci-Fi, 1985)
30		Weird Science (Comedy, Romance, Sci-Fi, 1985)
30		The Stuff (Comedy, Horror, Sci-Fi, 1985)
30		Real Genius (Comedy, Romance, Sci-Fi, 1985)
30		Interface (Sci-Fi, Comedy, Horror, 1985)
30		Creator (Comedy, Romance, Sci-Fi, 1985)
30		Of Tomorrows Unknown (Action, Sci-Fi, 1991)
30		TerrorVision (Comedy, Horror, Sci-Fi, 1986)
30		That Little Monster (Comedy, Horror, Sci-Fi, 1994)
30		Night of the Creeps (Comedy, Horror, Sci-Fi, 1986)
30		Short Circuit (Comedy, Family, Sci-Fi, 1986)
30		Frankenweenie (Animation, Comedy, Family, Sci-Fi, 2012)
30		Mr. Peabody & Sherman (Animation, Adventure, Comedy, Sci-Fi, 2014)
30		Brainscan (Comedy, Horror, Sci-Fi, 1994)
30		Monster in the Closet (Comedy, Horror, Sci-Fi, 1986)
30		Class of Nuke 'Em High (Comedy, Horror, Sci-Fi, 1986)
30		Men in Black 3 (Action, Adventure, Comedy, Sci-Fi, 2012)
30		The High Crusade (Adventure, Comedy, Sci-Fi, 1994)

Notes: Movies similar to The Spirit of '76, Movies like The Spirit of '76, Comedy, Sci-Fi, Lucas Reiner, Mark Mothersbaugh, Gerald V. Casale, Carl Reiner, Nancye Ferguson, SF, Science Fiction, SciFi, Sci Fi, Films, Video, Movie Similarities