12 Cantonese films of 2003 ranked by box office. #1: Running on Karma (HK$26.3 million).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | Running on Karma | Johnnie To | HK$26.3 million | |||
| 2 | Infernal Affairs II | Andrew Lau | HK$24.9 million | |||
| 3 | Good Times, Bed Times | Chan Hing-ka | HK$20 million | |||
| 4 | Cat and Mouse | Gordon Chan | HK$12.8 million | |||
| 5 | Naked Ambition | Dante Lam | HK$8.3 million | |||
| 6 | The Spy Dad | Wong Jing | HK$5.4 million | |||
| 7 | Drunken Monkey | Lau Kar-leung | HK$153,560 | |||
| The Twins Effect | Donnie Yen | $28.4 million | ||||
| Infernal Affairs III | Andrew Lau | $4.5 million | ||||
| Turn Left, Turn Right | Johnnie To | $2.1 million | ||||
| Lost in Time | Derek Yee | $2 million | ||||
| Heroic Duo | Benny Chan | $1.1 million |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.