| Country | Title | Year | Avg. (nb) | ||
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| Hong-Kong | Ultimate Vampire | 1991 | 3.25 (4 Reviews) | ||
| Ultimatum | 最後通牒 | 2001 | 2.08 (3 Reviews) | ||
| The Umbrella Story | 1995 | 2 (1 Reviews) | |||
| Unarm 72 Hours | 失鎗72小時 | 2003 | 1.5 (1 Reviews) | ||
| The Unbearable | 風雨同路 | 1994 | |||
| Unbearable Heights | 鐵翼驚情 | 2004 | |||
| Unbeatable | 激戰 | 2013 | 3 (10 Reviews) | ||
| Unbeatables | 火舞耀揚 | 2000 | 0.5 (1 Reviews) | ||
| The Unbelievable | 2009 | 0.25 (1 Reviews) | |||
| The Unchar Red River | 1985 | ||||
| Unconquered | 1970 | ||||
| Undefeatable | 1994 | 2 (1 Reviews) | |||
| Under the Bindge | 1984 | ||||
| Under The Rose | 1992 | 3 (1 Reviews) | |||
| Under the Same Roof : Dead Knot | 1980 | ||||
| Under The Same Roof : Teenagers | 1978 | ||||
| Undercover | 危险人物 | 2007 | 1.85 (5 Reviews) | ||
| Undercover Blues | 刑 （殺之法） | 2000 | 2.29 (6 Reviews) | ||
| Undercover Girls | 1999 | ||||
| Undercover Hidden Dragon | 至尊無賴 | 2006 | 2.5 (2 Reviews) | ||
