'Frozen' (PG) - Once upon a classic

Once upon a time the folks at Disney produced timeless classics, enchanting but with a dark edge.

Perhaps this is because they could mine a trove of centuries-old tales from the time when a patch of woods concealed mystery and very real dangers, when a step-mother favored her own children while appearing wicked to those of the ex-wife, when the idea that a jealous sorceress might silence those more comely seemed plausible.

In a children's film Cruella De Ville-the ultimate baddy-planned to dispose of a 101 puppies for their fur. Evil step-sisters held Cinderella in virtual slavery. There were...