When Jackie Chan and Chris Tucker are fighting their nemesis's guards in the massage parlor, watch when Jackie gets tripped. He just jumps back up, right? Wrong. You can pretty clearly see a hand help Jackie up. It's not Chris Tucker's hand. They should have just edited it out.
I don't see what you mean. I watched it in slow motion (because I have the movie) and saw no hand. Also, in the mess-ups you can clearly see Jackie messing up on that all on his own. I have friends who can jump up like that so easily.