There aren't that many scenes in Rush Hour 3 that are memorable. However, there is one part which is quite hilarious.
Chris Tucker and Jackie Chan were interrogating this baddie who is Chinese but only speaks French. Since they cannot communicate, they asked for a nun to help them to translate. She being a nun, will not utter all the F words.
Chris and Jackie have problems with their spelling and kept missing up their assholes and whores with W and H. And that to me, is one of the more worthwhile scenes to watch. Otherwise, it is boring.