The Spear of Heroism (1961)

Lord Gennosuke and Princess Yoshi are to be betrothed to one another, however Gennosuke is already in love with Suzue who is from a lower caste. The order has been sent from up on high that if Gennosuke won't change his mind then Suzue must be dealt with one way or another. When spearmaster, Fuwa Mondo, a Ronin and all around happy guy stumbles into the plot, things get a little hokey-pokey.