The Object of My Affection (1998)
Oceans 13 (2007)
The October Man (1947)
October Sky (1999)
Octopussy (1983)
The Odd Couple (1968)
Odd Man Out (1947)
Off His Trolley (1924)
Oh, Daddy! (1935)
Oh Heavenly Dog (1980)
Oh Mr Porter (1937)
Old Boys (2018)
Olsenbanden gir seg aldri! (1981)
O Lucky Man (1973)

The Omen (1976)
The Omen III (1981)
On a Clear Day (2005)
Once A Jolly Swagman (1948)
Once A Sinner (1950)
Once Upon a Dream (1948)
Once Upon a Time in the Midlands (2002)
One Exciting Night (1944)
One Good Turn (1954)
One of Our Dinosaurs is Missing (1998)
One, Two, Three (1961)

One Way Pendulum (1965)
On Chesil Beach (2017)
Only Two Can Play (1961)
On the Beat (1962)
On the Buses (1972)
On the Fiddle (1961)
On The Town (1949)
Ooh You Are Awful (1972)
Operation Conspiracy (1957)
Operation Third Form (1966)
The Optimists of Nine Elms (1973)

Orders are Orders (1953)
Ordinary People (1941)
Orphans (1998)
The Other Guys (2010)
Otley (1968)
Our Brand is Crisis (2015)
Our Man in Marrakesh (1966)
Out of the Clouds (1955)
Out of the Shadow (1961)
The Out of Towners (1970)
The Outrun (2024)
Outside Bet (2012)
Overland Stage Raiders (1938)
Oxford Blues (1984)
The Oxford Murders (2008)