| Country | Title | Year | Avg. (nb) | ||
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| Hong-Kong | Okinawa Rendez-Vous | 戀戰沖繩 | 2000 | 2.91 (11 Reviews) | |
| Once a Black Sheep | 1992 | 2.88 (2 Reviews) | |||
| Overheard 2 | 2011 | 2.85 (10 Reviews) | |||
| On Parole | 1993 | 2.83 (3 Reviews) | |||
| Overheard 3 | 竊聽風雲 3 | 2014 | 2.83 (3 Reviews) | ||
| The Other 1/2 and the Other 1/2 | 我愛太空人 | 1988 | 2.75 (1 Reviews) | ||
| One Way Only | 單程路 | 1981 | 2.67 (3 Reviews) | ||
| Once a gangster | Fei saa fung chung chun | 2010 | 2.67 (6 Reviews) | ||
| Option Zero | Ｇ４ 特工 | 1997 | 2.64 (9 Reviews) | ||
| Operation Pink Squad | 霸王女福星 | 1988 | 2.62 (4 Reviews) | ||
| The Occupant | 靈氣迫人 | 1984 | 2.56 (8 Reviews) | ||
| Once upon a Mirage | 1982 | 2.5 (1 Reviews) | |||
| Oh! My Cops | 1983 | 2.5 (2 Reviews) | |||
| One Husband Too Many | 一妻兩夫 | 1988 | 2.5 (1 Reviews) | ||
| Out of the Blur | 1996 | 2.5 (1 Reviews) | |||
| Our Neighbor Detective | 街坊差人 | 1994 | 2.5 (2 Reviews) | ||
| Osaka Wrestling Restaurant | 大阪撻一餐 | 2004 | 2.5 (7 Reviews) | ||
| Out Of Inferno | 逃出生天 | 2013 | 2.5 (7 Reviews) | ||
| Oh! My Three Guys | 1994 | 2.5 (1 Reviews) | |||
| The Other Side of Gentleman | 君子好逑 | 1984 | 2.5 (3 Reviews) | ||
