Shanghai Knights boasts an adequate story, interesting characters -loved the Scotland Yard inspector-, good acting -especially from the villains-, some funny moments, solid action scenes, cute movie and historical references, and strong production. So you can watch it confidently, knowing you're not going to get a horrid piece of junk.
That's the positive side. On the negative side, the movie is thoroughly unremarkable. I only watched it last night and I'm racking my brain trying to remember something memorable about it. After a while, I can only come up with two things. The name of the Jackie Chan character cracked me up: Chon Wang -pronounced "John Wayne". The same as in the first part, of course, but I haven't watched that since it came out.
The other thing that cracked me up ***minor spoiler start*** is that Roy blew all their money from part I by investing in zeppelins instead of cars. I thought that was pretty clever. But then there's the head-scratching moment when Roy confesses he lied, he actually lost the money publishing his book... a book that so happens to be a hit all over the country and is even well-known in England. Huh? I guess the script called for a "confession moment" and there was nothing else he could confess to right then ***minor spoiler end***.
How does this movie compare to Shanghai Noon? Can't tell, I don't remember. As for Rush Hour (not to mention early Jackie Chan films), I found the latter to be funnier, more original and an altogether better film. But Shanghai Knights is still OK, if you're tired of rewatching old Jackie films.
