Here is a list of links to reviews of Shanghai Knights. There are MAJOR SPOILERS in these reviews! Thanks to Marie M. For providing all these links.
Video interview ( short )of Jackie, Owen and Fann Wong and some premiere footage :
also, in this URL are more reviews :

TONS of reviews are pouring in - spoilers in the links to the reviews below :

"Movie Mom" gives SK a "B-" review :

Roger Ebert gives SK 3 stars !
My own Tulsa World newspaper gives SK 3 out of 4 stars.
Yahoo Movies "User Rating" [ from non-journalists who have seen SK ] is 4.75 stars out of 5 !
Click here to see yahoo reviews

Yahoo Movies gives SK an overall average critic's reviews rating of "B-":
51 reviews are now up at Rotten Tomatoes... ( Ebert and Roeper have not reviewed it yet - they will this Sat. )
...and so far is getting a "Fresh" rating of 64% - 60% or higher is considered "Fresh"(good )

Another 3 out of 5 stars review - not listed in the Yahoo or Rotten Tomatoes sites