Originally posted by: dc
japan = region 2
Japanese movie released in HK = region 3 or 0
Japanese movie released in US = region 1
Region does not a nationality make.
The OP's referring to this as a "jap" film is wrong in so many ways.
Ong-Bak is a few years old now. I would compare it to mid period Jackie Chan: you don't watch it for the plot or the acting, just the amazing action... not that Jackie's newer stuff features plot or acting... well maybe New Police Story does.