Jack Black, Jackie Chan, Dustin Hoffman and Lucy Liu lend their voices to the Dreamworks animated flick Kung Fu Panda and Yahoo! Movies has an exclusive trailer for the film. Panda is directed by Mark Osborne and John Stevenson and it is due out June 6th. Jack Black will appear again this summer alongside Ben Stiller, Robert Downey Jr. and Nick Nolte in the comedy Tropic Thunder which opens August 15th.