What About Bob? (1991)

Bill Murray at his most cheerfully unbearable, as a patient so needy he follows his psychiatrist on vacation. The real engine is Richard Dreyfuss, whose slow collapse from smug professional to raving wreck gives the comedy a target. Pick this when you want a gentle, warm comedy with a nasty streak underneath: nobody gets hurt badly, but the escalation is relentless, and "baby steps" has never left the vocabulary of anyone who has seen it.