| One Piece: Episode of Skypiea | 7.10 | 2018 | Aug 25, 2018 | Action |
| Official Secrets | 7.20 | 2019 | Aug 30, 2019 | Thriller |
| Other People's Mirrors | 4.50 | 2004 | Sep 25, 2004 | Drama |
| Omor Shongi | - | 2025 | Jan 31, 2025 | Romance |
| OL shikijô nikki: Ushiro kara semete | 2.00 | 1982 | May 14, 1982 | Drama |
| One Million Yen Girl | 7.20 | 2008 | Jul 19, 2008 | Drama |
| One Piece: Clockwork Island Adventure | 6.90 | 2001 | Mar 03, 2001 | Action |
| One Piece: Stampede | 7.80 | 2019 | Jan 03, 2019 | Animation |
| Orion and the Dark | 6.49 | 2024 | Feb 01, 2024 | Animation |
| OVERLORD: The Sacred Kingdom | 7.81 | 2024 | Sep 20, 2024 | Action |
| O.J.: Made in America | 8.40 | 2016 | May 20, 2016 | Documentary |
| Old School | 6.63 | 2003 | Feb 21, 2003 | Comedy |
| One Flew Over the Cuckoo's Nest | 8.40 | 1975 | Nov 19, 1975 | Drama |
| Oculus | 6.50 | 2014 | Apr 03, 2014 | Horror |
| Ok Jaanu | 5.70 | 2017 | Jan 12, 2017 | Drama |
| Once Upon a Time in Mexico | 6.32 | 2003 | Sep 11, 2003 | Action |
| One 2 Ka 4 | 5.57 | 2001 | Mar 30, 2001 | Action |
| One Night Only | 4.20 | 1986 | Jan 06, 1986 | Comedy |
| Original Gangstas | 5.60 | 1996 | May 10, 1996 | Action |
| Our Hero, Balthazar | 6.50 | 2026 | Mar 27, 2026 | Drama |
| O Brother, Where Art Thou? | 7.33 | 2000 | Aug 30, 2000 | Adventure |
| Only the Brave | 7.48 | 2017 | Sep 22, 2017 | Drama |
| Osama | 7.00 | 2004 | Mar 24, 2004 | Drama |
| Oye Bhole Oye | - | 2024 | Feb 16, 2024 | Drama |
| Once We Were Us | 7.80 | 2025 | Dec 31, 2025 | Romance |
| One of Them Days | 6.66 | 2025 | Jan 16, 2025 | Comedy |
| Obsession | 6.70 | 1954 | Oct 28, 1954 | Crime |
| Odisea | - | 2026 | Jan 01, 1970 | Music |
| Once Upon a Time in the West | 8.26 | 1968 | Dec 21, 1968 | Drama |
| One Summer Affair | 3.00 | 1978 | Aug 05, 1978 | Drama |
| Over the Hedge | 6.61 | 2006 | May 17, 2006 | Adventure |
| Obi-Wan Kenobi: A Jedi's Return | 6.80 | 2022 | Sep 07, 2022 | Documentary |
| Ocean's Twelve | 6.57 | 2004 | Dec 09, 2004 | Thriller |
| Oh My Kadavule | 7.90 | 2020 | Feb 13, 2020 | Comedy |
| Om Namo Venkatesaya | 4.50 | 2017 | Feb 10, 2017 | Drama |
| Once in a Summer | 6.81 | 2006 | Nov 30, 2006 | Drama |
| One on One | 5.90 | 1977 | Jun 28, 1977 | Drama |
| Ong Bak 3 | 6.10 | 2010 | May 05, 2010 | Action |
| Over Your Dead Body | 6.42 | 2026 | Mar 14, 2026 | Action |
| Obsession | - | 2009 | Oct 30, 2009 | Comedy |