Movies with the first letter - "O"
- Orphan (2009)
- Orphan Horse (2018)
- Orphan: First Kill (2022)
- Orphans (1987)
- Orphans (1998)
- Orphans & Kingdoms (2014)
- Orphée aux enfers (1997)
- Orpheus (1950)
- Orpheus (2020)
- Orpheus' Song (2019)
- Oru Adaar Love (2019)
- Oru Kuprasidha Payyan (2018)
- Oru Naal Varum (2010)
- Oru Nadigayin Vakku Moolam (2012)
- Oru Pakka Kathai (2020)
- Oru Thekkan Thallu Case (2022)
- Os Canibais (1988)
- Os Emissários de Khalôm (1988)
- Os Jovens Baumann (2018)
- Os Trapalhões na Guerra dos Planetas (1978)
- Osaka Elegy (1936)
- Osaka Wrestling Restaurant (2004)
- Oscar (1967)
- Oscar and Lucinda (1997)
- Oscar and the Lady in Pink (2009)
- Oscar Micheaux: The Superhero of Black Filmmaking (2021)
- Oscar Niemeyer, un architecte engagé dans le siècle (2001)
- Oscar Peterson: Black + White (2020)
- Oscura Seduccion (2010)
- Oscuros sueños de agosto (1967)