Continuity mistake: Shen starts fighting some people in the building with a suit case and an umbrella. At one point he's holding the tip of the umbrella against the black guy's chest with his arm almost fully outstretched. The end of his umbrella is against the right side of the man's tie. When it cuts to the next shot, the end of the umbrella is now on the left side of the man's tie, and Shen's arm is bent in more with him closer. (00:10:16)
Continuity mistake: At the start of the film, a man is giving a tour of a building under reconstruction to some potential buyers. One shot, as he's telling them that this sits on a 14-acre lot, there are just 3 people as they walk through a doorway. The film jump cuts to a closer angle, and suddenly a 4th person appears in front of them from thin air. (00:02:34)
