Most times I'm a big fan of Chow Yun-Fat, but casting him as Roshi is the final nail in the coffin that this abortion of a movie will be. From the looks of things, the only stuff they are keeping fron ANY of the Dragonball lore is the names, and that is a bad move no matter how you slice it. It's going to be so far-off base that the fans will hate it, and since it's still Dragonball no matter how much they cut it will be batshit insane enough that casual movie-veiwers will hate it.
The only chance this movie ever had was to go SO over the top, that at least the fans would be happy, and it might make a good film to see with your stoner friends. As it stands now, they've ruined any chance, no matter how slim, that this movie had of being more then Uwe Boll level dreck.