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| Hong-Kong | One Heart One Spirit | 1981 | |||
| One Husband Too Many | 一妻兩夫 | 1988 | 2.5 (1 Reviews) | ||
| The One in Yellow | 1969 | ||||
| One Man and Two Women | 1995 | ||||
| One Murder, Five Deaths | 一屍五命案 | 1963 | |||
| One night thriller | 2005 | ||||
| One of the Lucky Ones | 伴我同行 | 1994 | 3.5 (1 Reviews) | ||
| One Step Ahead | 1980 | ||||
| One Step Beyond | 1992 | ||||
| One Summer With You | 2005 | 2.25 (1 Reviews) | |||
| One Way Only | 單程路 | 1981 | 2.67 (3 Reviews) | ||
| One Way Only | 1979 | ||||
| One Way Ticket to Bangkok | 勇闖毒龍潭 | 1988 | |||
| One Year's Fantasy | 1974 | ||||
| The One-armed Magic Nun | 1969 | ||||
| The One-eyed Loner | 1969 | ||||
| The One-eyed Swordsman | 1968 | ||||
| Only Fools Fall in Love | 呆佬拜壽 | 1995 | 3.31 (4 Reviews) | ||
| Only for You | 1986 | ||||
| Only the Way | 助念新星 | 2008 | |||
