Other mistake: In the very last scene, we see a poster for Time magazine telling the story of the husband and wife Kung fu athletes. The bottom line reads "Wins World champion Bowling again". It should be "Championship".
Other mistake: When Sing sang in front of the Mantao bun restaurant, look closer to his left when the camera angle faced him; an extra can be seen tripping on the side of a pedestrian road. In the next shot, when the camera faced Sing again, the mentioned character can be seen hitting his head into a tree. The character is wearing a brown, white, and black striped shirt. (00:15:47)
