On the Ropes
- Year:
- 2011
- Director:
- Mark Noyce, Hamdy Taha
United Kingdom
On the Run
- Year:
- 1968
- Director:
- Pat Jackson
On the Run
- Year:
- 1963
- Director:
- Robert Tronson
On the Streets
- Year:
- 2010
- Director:
- Penny Woolcock
On the Third Day
- Year:
- 1983
- Director:
- Stanley O'Toole
On the Trail of Mark Twain
- Year:
- 1998
- Director:
- N/A
On the Twelfth Day...
- Year:
- 1955
- Director:
- Wendy Toye
On the Twelfth Day of Findom
- Year:
- 2025
- Director:
- N/A
On the Up
- Year:
- 1990
- Director:
- N/A
On the Way to a Smile - Episode Denzel: Final Fantasy VII
- Year:
- 2009
- Director:
- Joseph Knight
On the Web #1 the troll
- Year:
- 2020
- Director:
- Forino
On the Web #2 the npc
- Year:
- 2020
- Director:
- Forino
On the Web #3 Monika in HD
- Year:
- 2021
- Director:
- Forino
On the Wire
- Year:
- 1990
- Director:
- Elaine Proctor
On the Yorkshire Buses
- Year:
- 2014
- Director:
- N/A
On Thin Ice
- Year:
- 1933
- Director:
- Bernard Vorhaus
On This Island
- Year:
- 2012
- Director:
- Matthew Hammett Knott
On Time Off
- Year:
- 2008
- Director:
- Bill Porter
On top
- Year:
- 2024
- Director:
- Luke Mayers
On Trial
- Year:
- 1960
- Director:
- N/A
On Trial: Lee Harvey Oswald
- Year:
- 1986
- Director:
- Ian Hamilton
Onus
- Year:
- 2020
- Director:
- Alex Secker
Onus
- Year:
- 2016
- Director:
- George Clarke
On Westminster Bridge
- Year:
- 1896
- Director:
- Robert W. Paul
Onye Ozi
- Year:
- 2013
- Director:
- Obi Emelonye
On Your Behalf
- Year:
- 2022
- Director:
- Ana Garcia Rico
On Your Feet, Woman!
- Year:
- 2015
- Director:
- Evi Tsiligaridou
On Your Way Riley
- Year:
- 1985
- Director:
- John Glenister
Ooh La La!
- Year:
- 1968
- Director:
- N/A
Oona and Me
- Year:
- 2005
- Director:
- Nora Meyer
O Outro Lado do Cartão-Postal
- Year:
- 2016
- Director:
- Angel Melo, David Morris
Open
- Year:
- 2021
- Director:
- Jack Eve
Open
- Year:
- 2022
- Director:
- N/A
The Open
- Year:
- 2015
- Director:
- Marc Lahore
Open Air
- Year:
- 1986
- Director:
- N/A
Open All Hours
- Year:
- 1976
- Director:
- N/A
Open All Hours 50 Years of Laughter
- Year:
- 2023
- Director:
- N/A
Open Asylum
- Year:
- 1982
- Director:
- Colm Villa
The Open Door
- Year:
- 1966
- Director:
- Joan Kemp-Welch
The Open Doors
- Year:
- 2004
- Director:
- James Rogan
Open Fire
- Year:
- 1994
- Director:
- Paul Greengrass
Open House
- Year:
- 1998
- Director:
- N/A
Open House
- Year:
- 1964
- Director:
- N/A
Open House
- Year:
- 2007
- Director:
- N/A
Opening of the Drill Hall in Accrington by General Baden-Powell
- Year:
- 1904
- Director:
- N/A
Opening of the Kiel Canal
- Year:
- 1895
- Director:
- Birt Acres
Opening Up
- Year:
- 2024
- Director:
- Oz Arshad
Open My Eyes
- Year:
- 2016
- Director:
- Marcel Grant
Open Plan
- Year:
- 2016
- Director:
- Daniel Murtha
Open Season: Scared Silly
- Year:
- 2015
- Director:
- David Feiss, Frantisek Vasa
The Open Secret
- Year:
- 2022
- Director:
- Jacob Cartwright, Nick Jordan
Open Skies
- Year:
- 2008
- Director:
- Rob Brown
Open Wide
- Year:
- 2018
- Director:
- Rosco Five, Gideon Beresford, Behnam Taheri
Open Your Eyes
- Year:
- 2024
- Director:
- Samantha Scaffidi
Opéra imaginaire
- Year:
- 1993
- Director:
- José Abel, Hilary Audus, Jonathan Hills
Opera in Cinema: Royal Opera House's "Eugene Onegin"
- Year:
- 2013
- Director:
- Jonathan Haswell
Opera Italia, the Triumph of Puccini
- Year:
- 2011–
- Director:
- N/A
Operation Amsterdam
- Year:
- 1959
- Director:
- Michael McCarthy
Operation Bethlehem
- Year:
- 2014
- Director:
- Leila Sansour
Operation Bullshine
- Year:
- 1959
- Director:
- Gilbert Gunn
Operation Conspiracy
- Year:
- 1956
- Director:
- Joseph Sterling
Operation Crossbow
- Year:
- 2011
- Director:
- Tim Dunn
Operation Cupid
- Year:
- 1960
- Director:
- Charles Saunders
Operation Dark Phone: Murder by text
- Year:
- 2025
- Director:
- N/A
Operation Diamond
- Year:
- N/A
- Director:
- Ronnie Pilgrim
Operation Dynamo
- Year:
- 2024
- Director:
- Charlie Painter
Operation Gold Rush with Dan Snow
- Year:
- 2016
- Director:
- N/A
Operation Good Guys
- Year:
- 1997
- Director:
- N/A
Operation Hurricane
- Year:
- 1953
- Director:
- Ronald Stark
Operation Jaguar
- Year:
- 2025
- Director:
- Arek Zasowski
Operation Julie
- Year:
- 1985
- Director:
- Bob Mahoney
Operation London Bridge
- Year:
- 1975
- Director:
- C. David Lochner, Norman Prouting
Operation Magpie
- Year:
- 2023
- Director:
- Andonis Anthony, Rupert Hill
Operation Malaya
- Year:
- 1953
- Director:
- David MacDonald
Operation Mermaid
- Year:
- 1963
- Director:
- John Ainsworth
Operation Mincemeat
- Year:
- 2010
- Director:
- Russell England
Operation Miracle
- Year:
- 2021
- Director:
- N/A
Operation Murder
- Year:
- 1957
- Director:
- Ernest Morris
Operation Oman
- Year:
- 2014
- Director:
- Tristan Ofield
Operation Ouch
- Year:
- 2012
- Director:
- N/A
Operation Pablo
- Year:
- 2024
- Director:
- Karen 'K.M.L' Quinn
Operation Royal Wedding
- Year:
- 2018
- Director:
- N/A
Operation Snatch
- Year:
- 1962
- Director:
- Robert Day
Operation Stonehenge
- Year:
- 2014
- Director:
- N/A
Operation Third Form
- Year:
- 1966
- Director:
- David Eady
Operation War Thunder
- Year:
- 2024
- Director:
- James Peakman
Operation X
- Year:
- 1950
- Director:
- Gregory Ratoff
The Operative
- Year:
- 2000
- Director:
- Robert Lee
Operator
- Year:
- 2015
- Director:
- Caroline Bartleet
The Operator
- Year:
- 2022
- Director:
- Matthew Riley
Operavox
- Year:
- 1995
- Director:
- N/A
O, Persecuted
- Year:
- 2014
- Director:
- Basma Alsharif
Ophir
- Year:
- 2020
- Director:
- Alexandre Berman, Olivier Pollet
Oporichito
- Year:
- 2025
- Director:
- Joydeep Mukherjee
Oppenheimer
- Year:
- 1980
- Director:
- N/A
Oprah Winfrey: Fight for a Better Life
- Year:
- 2021
- Director:
- Roxane Schlumberger
Opus
- Year:
- 1967
- Director:
- Don Levy
Oranda
- Year:
- 2019
- Director:
- Livan Garcia-Duquesne
Orange Assessment
- Year:
- 2023
- Director:
- J. Joseph Held
Orange Cheesecake
- Year:
- 2025
- Director:
- Sam Liddell