For the record. Both "The Bourne Ultimatum" and "Rush Hour 3" are terrible movies. I've seen two movies in two night on the big screen and been horribly disappointed by both. Neither movie had anything new to offer. The same jokes stunts and tricks.
Bourne is super human everything. Smarter, faster and tricker then everyone else. The technology tricks were unconvincing. Everyone knows that they can be tracked through their phones but leave them on all the time. The CIA knows everything about you but can't figure out the fact that Jason Bourne knows all of the ways that they will attempt to trick him. It was a saga of blunt instruments hitting blunt instruments. That is the one thing that Casino Royal did better in the Spy genera, Bond is a thinking man.
Additionally there is some pretty terrible character development, not helped by bad actors, among the CIA staff. Matt Damon has come a long way in talent since the first movie. But the actors with him couldn't carry their weight. (I think the one exception was Albert Finney who had a short yet terrific performance.)
The last straw and the thing that really killed it was the ending. I don't want to be a spoiler but they did a terrible job of not deciding if they were going to make a fourth movie. There were some pretty transparent and weak tie backs to the first movie that let it go either way. I just really bothered me. I would talk about it more but I really don't want to spoil the disappointment for anyone else.
Rush hour offers very tired cross racial jokes. The scene in the first 20 minutes of the movie where they use a nun as an interpreter was probably the best comedy in the whole movie. Otherwise the jokes were weak tea compared to the previous movies. They did a really bad bit with a French cab driver who wouldn't drive the American but then wants to be a real American because we have a good time was just tacky. Really I don't have much else to say about this one other than it just wasn't very good.