The official website (with English language) is here 
www.kungfuhustle.com/

Even the trailer has English commentary and subtitles! 

Has anyone watched?

In the mainland China, the three day record (Thur. - Sun.) is approximately 50 million yuans (US$ 6.04 million). In the city of Hong Kong, the revenue for the three day record (Thur. - Sat.) is roughly HK$ 15 million (US$ 1.93 million).

My guess
-- If you like Shaolin Soccer, you will like this better.
-- If you do NOT like Shaolin Soccer, you will NOT like this.
-- If you like Stephen Chow's style (or kind of humor), you will like this movie. 

Comments from a friend (NOT from me)
-- hardly any plot; too exaggerated; special effects overdone. but what else to expect from a stephen chow's movie? people might like the stephen chowness, but nothing else.
-- the only watchable kungfu scenes are those from the three guys (shi-er-lu tan tui; tie-xian quan; and e-lang-ba-guo gun).

Will I watch? yup ... when it is available here or on DVD.