Visible crew/equipment: As Jackie Chan begins to fall from the ceiling onto the banner after the climax you can see about 4 (maybe 5) crew members on the balcony to the right of the screen getting the high angle shot. (01:28:35)
Visible crew/equipment: When Chris Tucker and Jackie Chan are on top of the sight seeing bus, Jackie escapes by grabbing onto a street sign overhead, which is being held up by straps that supposedly ascend higher. In the next shot the crane that is holding the sign up can be seen in the background.
Visible crew/equipment: As Chris Tucker rescues the little girl from the van, you can see a bearded guy in a white baseball hat, presumably a crew member, standing a couple feet away, reflecting off the back windows of the van when he opens the door and right after Chris Tucker says the line; "Tell your friends about me." (01:18:10)
Answer: Because he doesn't believe that Lee is right. He thinks that he's just going to annoy the FBI and so he doesn't want to be seen to be involved.
roboc