Self (archive footage)
O.J.: Made in America (2016)
The Horrors of Hamilton High: The Making of Prom Night (2014)
Mel Brooks: Make a Noise (2013)
Producer
Stonerville (2011)
Doctor Nielsen
Spanish Movie (2009)
Kay
Stan Helsing (2009)
Mayor of Charlestown
Slap Shot 3: The Junior League (2008)
Osama Bin Nielsen / Grandpa
An American Carol (2008)
Uncle Albert Adams
Superhero Movie (2008)
Dr. Rumack (archive voice)
Family Guy Presents: Blue Harvest (2008)
Bill Austin
Music Within (2007)
Self
Robby the Robot: Engineering a Sci-Fi Icon (2006)
Amazing! Exploring the Far Reaches of Forbidden Planet (2006)
President Baxter Harris
Scary Movie 4 (2006)
Nos Bastidores de Hollywood (2005)
(Mouseking) (voice)
The Nutcracker and the Mouseking (2004)
Narrator (english version)
Noël Noël (2003)
Scary Movie 3 (2003)
Gordon Cutter
Men with Brooms (2002)
Jack Potter
Camouflage (2001)
Clive Thorton / Cab Driver
Kevin of the North (2001)
Santa Claus
Santa Who? (2000)
Richard 'Dick' Dix
2001: A Space Travesty (2000)
Lucky
Pirates: 3D Show (1999)
Ryan Harrison
Wrongfully Accused (1998)
Mr. Penn
Safety Patrol! (1998)
Mr. Quincy Magoo
Mr. Magoo (1997)
Harry Haber
Family Plan (1997)
Himself
Leslie Nielsen's Stupid Little Golf Video (1997)
Dr. Chumley
Harvey (1996)
Dick Steele
Spy Hard (1996)
Count Dracula
Dracula: Dead and Loving It (1995)
Baxter
Mr. Willowby's Christmas Tree (1995)
Rent-a-Kid (1995)
Lucio Cinico
S.P.Q.R. 2000 e 1/2 anni fa (1994)
Self - Audience Member
An Audience with Jimmy Tarbuck (1994)
WWE SummerSlam 1994 (1994)
Masters of Illusion: The Wizards of Special Effects (1994)
Lt. Frank Drebin
Naked Gun 33⅓: The Final Insult (1994)
Leslie Nielsen
Leslie Nielsen's Bad Golf My Way (1994)
Leslie Nielsen's Bad Golf Made Easier (1993)
Arthur Evrensel
Digger (1993)
Self - Narrator
The Unknown Marx Brothers (1993)
Colonel Chi
Surf Ninjas (1993)
Lloyd Dixon
Chance of a Lifetime (1991)
Santa
All I Want For Christmas (1991)
The Naked Gun 2½: The Smell of Fear (1991)
Father Jebedaiah Mayii
Repossessed (1990)
Host
Back to the Future (Part II): Behind-the-Scenes Special Presentation (1989)
Narrator (voice)
The Railway Dragon (1989)
Frank Drebin
The Naked Gun: From the Files of Police Squad! (1988)
Greg Krevske
Dangerous Curves (1988)
Senator Erdain
Fatal Confession: A Father Dowling Mystery (1987)
Allen Green
Nuts (1987)
Thad Evans
Nightstick (1987)
Sheriff Nashville Schwartz
Home Is Where the Hart Is (1987)
Mr. Dunbar
Soul Man (1986)
Admiral Frazer
The Patriot (1986)
The Canadian Conspiracy (1986)
Jim McKay
Striker's Mountain (1985)
Bob Franklin
Reckless Disregard (1985)
Harry Ingersoll
Blade in Hong Kong (1985)
Capt. Jamieson
Spaceship (1983)
Joe Johnson
Cave-In! (1983)
Richard Vickers (segment "Something To Tide You Over")
Creepshow (1982)
Mallory
Wrong Is Right (1982)
Twilight Theatre (1982)
Reece Morgan
Foxfire Light (1982)
Paul Warren
The Night the Bridge Fell Down (1980)
Mr. Hammond
Prom Night (1980)
Dr. Rumack
Airplane! (1980)
Governor
OHMS (1980)
Mayor William Dudley
City on Fire (1979)
Counselor Hollis Barnes
Institute for Revenge (1979)
Nelson Fisher
Little Mo (1978)
Riley Knight
The Amsterdam Kill (1977)
Stanley Millard
Viva Knievel! (1977)
Paul Jenson
Day of the Animals (1977)
Narrator
The Dawson Patrol (1977)
John Williams
Grand Jury (1977)
John Doe
Sixth and Main (1977)
John Trevor
Project: Kill (1976)
Agent Norman Houston
Brinks: The Great Robbery (1976)
King of the Underwater World (1975)
The Outlaw Cats of Colossal Cave (1975)
Arnold Lindsey
Can Ellen Be Saved? (1974)
Alexander Hadrachi
The Return of Charlie Chan (1973)
Mr. Cummings
Amanda Fallon (1973)
Derek Childs
The Letters (1973)
Bill Sutter
Snatched (1973)
Jack Gallagher
...And Millions Die! (1973)
(voice)
Journey to the Outer Limits (1973)
Captain Harrison
The Poseidon Adventure (1972)
They Call It Murder (1971)
Harry Walsh
The Resurrection of Zachary Wheeler (1971)
Lt. Brubaker
Incident in San Francisco (1971)
Joseph Slaughter
Hauser's Memory (1970)
Official
The Aquarians (1970)
Sheriff Henshaw
Night Slaves (1970)
Sheriff Webb
Change of Mind (1969)
Phil Fletcher
How to Commit Marriage (1969)
Lt. Sam Danforth
Deadlock (1969)
Jason Harkness
Trial Run (1969)
Mr Brown
Four Rode Out (1969)
Dr. Neesden
Companions in Nightmare (1968)
Frank Dayton
Dayton's Devils (1968)
Brent
Cocoon (1968)
General Maximilian Harmon
How to Steal the World (1968)
The Wild Heart (1968)
Sheriff Verne Drover
Shadow Over Elveron (1968)
Victor Rice
Counterpoint (1967)
Cabot Shaw
Rosie! (1967)
Major Fred Gifford
The Reluctant Astronaut (1967)
The Boy Who Flew with Condors (1967)
Grant Evers
Gunfight in Abilene (1967)
Fryer
Code Name: Heraclitus (1967)
Lt. De Ruse
Beau Geste (1966)
Col. George Armstrong Custer
The Plainsman (1966)
Brett Kingsford
Dark Intruder (1965)
Richard Manley
Harlow (1965)
Elliot Green
See How They Run (1964)
Alan Holiday
Night Train to Paris (1964)
Eddie Kirkley
The Velvet Alley (1959)
Stephen Bedford / Johnny Bledsoe
The Sheepman (1958)
Peter Brent
Tammy and the Bachelor (1957)
William Joel Partain
Hot Summer Night (1957)
Steve Hilliard
The Opposite Sex (1956)
Thibault d'Aussigny
The Vagabond King (1956)
Commander John J. Adams
Forbidden Planet (1956)
Charlie Telfer
Ransom! (1956)
The Battle of Gettysburg (1955)
Dr. Roger Waring
Dark Possession (1954)
Executive Co-Producer
Executive Producer