Michael Shannon is descended from a long line of actors — Cagney, De Niro, Pacino — primed to explode. “The Iceman” is the true story (more or less) of Richard “The Iceman” Kuklinski, a New Jersey mob hit man who murdered anywhere from 100 to 250 people while building a suburban home life with a wife (Winona Ryder) and family.
It’s a fascinating subject — the beast that lurks inside the family man — but the movie blows it. It’s a grimly passable crime drama in the sub-“Goodfellas”/“Sopranos” vein, and if you’re looking for something to order up on a slow Saturday night, it’ll do. But the real show here should be the many conflicted levels of a brutal man, and director/co-writer Ariel Vromen just doesn’t have the chops. Full story for BostonGlobe.com subscribers.