David Lam (林德祿) actually had worked for ICAC from 1980 to 1986. And his descriptions of ICAC operations are so real in detail.

It is not a story issue but the narrative devices like Sadako and zombies actually failed this film at the end.

The Operation Red Sea is the one which has the high quality of Hollywood filmmaking standard and competitive with Hollywood films locally.

This film actually revived creative vitality of Golden era of Hong Kong filmmaking by Mainland China's financial and marketing help.