A movie called Ryu ga Gotoku was based on the game, following the storyline pretty close with all the locations, characters, and even the fighting effects from the game.
"Ryu ga Gotoku [Model SLPM-74234]" (2006)
"Ryu ga Gotoku [Model SLPM-74253]" (2007)
"Ryu ga Gotoku [Model SLKA-25342]"
"Yakuza [Model SLUS-21348]
"Yakuza [Model SLES-54171]