The problem is solved. I asked it to a blogspot, and they replied. There is 2 sex/nudity scenes. First, Chan and Wu goes to a bath and they seen fully nude from behind. And the other scene comes after Chan and Wu looks at two woman on the street and decide to have fun. I can't give info about the second scene because we skipped it .

Anyway, thanks for the reply, and thanks for understanding. Some people don't understand why that kinda scenes bother me while watching it with family.