Hong Kong actors Nick Cheung, Sean Lau and Louis Koo pose during a worship ceremony for the filming of the movie "The Cartel War" in Hong Kong, China, 23 January 2013.

Hong Kong actors Nick Cheung, Sean Lau, Louis Koo and Chinese actress Yuan Quan starts filming the movie "The Cartel War", directed by Benny Chan, in Hong Kong, China, 23 January 2013. They will travel to Thailand to film some scenes of the movie, which the role acted by Nick Cheung will be bitten to death by a crocodile.