Blake Morrison ( Colin Firth ) wryly notes in "When Did You Last See Your Father?” that if you put two men in a room long enough, they'll kill each other. Throughout this touching and refreshingly unsentimental look at father-and-son friction, that impulse lies just below the surface as Blake endures the taunts of his overbearing dad.

Based on Morrison's memoir, the film chronicles the lifelong conflict between Bla...