- O Jerusalem
- O Menino da Porteira
- O' Horten
- Objectified
- Observe and Report
- Obsessed
- Ocean of Pearls
- Ocean's Eleven
- Ocean's Thirteen
- Ocean's Twelve
- Océans
- Odette Toulemonde
- Of Murder and Memory
- Of Time and the City
- Off the Black
- Off the Map
- Office Space
- Offside
- Oh My God
- Ola tha pane kala
- Old Dogs
- Old Joy
- Old School
- Oldboy
- Oliver Twist
- Om Shanti Om
- On a Clear Day
- On Broadway
- On the Other Hand, Death
- On the Waterfront
- Once
- Once Upon A Time In Mexico
- Ondine
- One Day You'll Understand
- One Flew Over the Cuckoo's Nest
- One Hour Photo
- One Last Thing...
- One Love
- One Missed Call
- One Night with the King
- One Week
- One-Eyed Monster
- Ong bak 2
- Ong-bak
- Only Human (Seres queridos)
- Open Range
- Open Season
- Open Season 2
- Open Water
- Orfanato, El
- Orgies and the Meaning of Life
- Original Sin
- Orphan
- Osama
- OSS 117: Rio ne repond plus
- Other People's Parties
- Otto; or, Up with Dead People
- Our Family Wedding
- Out Cold
- Out of Sight
- Out of Time
- Outlander
- Outlaw Trail: The Treasure of Butch Cassidy
- Outpost
- Outrage
- Outsourced
- Over the Hedge
- Owl and the Sparrow
- Owning Mahowny
- Oxygen
