SHOGUN ASSASSIN (1980)
(aka Lone Wolf and CUb)
Featuring the voice of Sandra Bernhard (yes, Sandra Bernhard)

The Shogun's executioner is the kind of bad mofo who makes grown men weep with fear. After his wife is murdered by the Shogun, this Lone Wolf straps his five-year-old son into a samurai Snugli, grabs a baby cart packed with weapons, and cuts a bloody path through feudal Japan, hot for revenge. The kind of flick that made the grindhouse crowds on 42nd street climb the walls in a frenzy and pee their pants in joy, SHOGUN ASSASSIN offers a brand new, bright red view of single parenthood as a homicidal contact sport.