Nice Yakuza?
The movie - but more so the making of featurette 'Promises to keep' (included on the current DVD release)- makes out that the Yakuza are men or honour who follow a samurai type code and only hurt their own. This is baloney and it was the case back in the 70s.
The Yakuza have always been involved in extortion, murder, fraud, sexual slavery, prostitution, and pornography including child pornography. Its a myth that they don't hurt ordinary people just because the Japanese media and police cover up their involvement in crimes. They are very good at what they do and that includes intimidating victims, witnesses, journalists and the authorities - and bribing officials to 'go blind'. Have a read of TOKYO VICE by Jake Adelstein, an American who worked as a journalist in Japan until the Yakuza threatened him and his family.
The Yakuza is a great little film but as a true portrayal of the yakuza its as inaccurate as the Godfather is of the mafia.
...now I do it just to watch their f----n' expression change.