Is very confusing .
Where are these alleged leigeless Samurai ?! I haven't seen one yummy Japanese warrior, just a bunch of grumpy French dudes+Robert Dinero. Worth my time?
A Ronin is a samurai, without a master. Basically what Robert Dinero's character is. He's the one character who has the most to gain by being the "heel", however by the end of the movie, you realize he's the only honest player out of the bunch.
@OP