Lost

This film succeeds because it confronts every parent's nightmare: what happens when you suddenly look away and find your child is missing when you look back? Of course, this being a class-riddled Rank picture, it's the nanny who loses the baby, but it's pretty harrowing nonetheless, despite the casting of insipid David Knight and Julia Arnall as baby Simon's parents. Granite-faced cop David Farrar is on hand to bring grit to screenwriter Janet Green's earnest chase movie, and not-so-hidden among the red herrings are a welter of British character players, with particularly impressive work from Thora Hird. The little-known Anna Turner also gives a fine performance as the tormented baby-snatcher, and Harry Waxman's colour location photography is superb, but the cliff-top climax is a little hard to believe.