I love the way she starts to giggle before he tickles her, because she knows it's coming.
As for tuxedo, there's an amazing tickling scene in the "making of" feature from HBO. Jackie Chan has her in a corner and he's supposed to be kissing her and apparently it tickles, so he starts tickling her and poking her, and finally she is so flustered that she has to apologize and run off the set. Then the director steps forward and says "Jackie, you have to stop tickling her." It's briefer than I'm making it sound, but VERY good.
I have it on tape, but I'm not set up to get content from VHS tapes. If anyone wants to rip it, I'll mail it to you.