証人
- Bliain: 2008
- Tír: China, Hong Kong
- Seánra: Action, Thriller, Crime
- Stiúideo: Sil-Metropole Organisation, JCE Movies, Emperor Film Production, Emperor Classic Films, Emperor Motion Pictures, Free-D Workshop Company, Beijing Enlight Pictures, Broadmedia Studios, Golden Village Pictures, Lark Films Distribution, SaiGon Movies Media, Scorpio East Pictures, Joy Sales Films And Video Distributors, Koch Media, MATV Movie Asia, KOCH MEDIA SRL
- Eochairfhocal: police, ransom
- Stiúrthóir: Dante Lam Chiu-Yin
- Caitheadh: 謝霆鋒, 張家輝, 张静初, Miao Pu, 廖啟智, Sherman Chung Shu-Man