Movie review: ‘Babies’

Even in movies, babies tend to have a very special effect — in fact, you might call them God’s ultimate special effect. Whenever the face of an infant comes on screen, the coos and giggles and cuddly-sweet ”Awwww!’’s from the audience tend to follow right on cue. And so an entire documentary called “Babies” should, by all rights, be a crowd-pleasing sugar rush of irresistible cute joy.