| Release Date | 15 December 2005 |
| Budget | $42,000,000 |
| Genre | Action, Drama, Fantasy |
| Country | ChinaUSASouth Korea |
| Filming Locations | Hengdian World Studios, Heng Dian, China |
| Language | Mandarin |
| Sound Mix | DTS, Dolby Digital, SDDS |
| Color | Color |
| Film Type | Feature |
| Film Class | Martial Arts, Romantic Epic, Fantasy Adventure, Period Film |
| Niche Genre | Epic |
| Themes | Great Battles, Star-Crossed Lovers, Crowned Heads, Curses and Spells |
| Tones | Sweeping, Rousing, Passionate |
| Tags | China, Commander, Love, Rescue, Spell [magic], War |
The Promise (simplified Chinese: ; traditional Chinese: ; pinyin: Wújí; literally "Limitless") is a 2005 Chinese epic fantasy film directed by Chen Kaige and starring Jang Dong-gun, Hiroyuki Sanada, Cecilia Cheung and Nicholas Tse. The film is based on the Wuxia romance The K’un-lun Slave, written by P’ei Hsing at the time of the Tang Dynasty.