Sina.com was mentioning the K-20 "Black Mask in disguise" (《变相黑侠》) and "Alice in Wonderland" among other long waited movies such as French movie "Do not look back" (《不要回头》) and Russian "Lost Tomb" (《古墓迷途》).
According to Sina.com, Takeshi Kaneshiro was not present at the Beijing’s K-20 premier. There are several reasons named though there is no official explanation.
And a little bit of additional information on K-20: as one of the other articles at Sina says, Takeshi Kaneshiro has fulfilled his childhood dream to perform a hero. Takeshi Kaneshiro had also a dream to perform or even to be a police man. When the shootings of the "Black Mask in disguise" his ideas of the real hero changed and as he said everyone can become a hero. The article also says about his great devotion to acting saying that he would put all the energy to the shooting to get the best result.