Britain’s master farceur (Two Into One, Run For Your Wife, et al.) is at it again. Set in a hospital, It Runs in the Family contains the usual assortment of farcical nuts running in and out of doors mistaking everybody for someone else, as Dr. Mortimore tries to fend off a paternity suit, an ex wife, a punkish son and various other lunatics so that he may, at last, deliver the Ponsonby Lecture in an international conference.