Fathers' Day (HBO)
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Which dad is the real dad? The hilarity begins when a beautiful woman tells two long-ago ex-lovers that each is the father of her runaway son. Inspired by unexpected fatherhood, Robin Williams and Billy Crystal are off and running, each determined to find 'his' 16-year-old son. When they bump into each other and decide to work together, it's laughter all the way!
Starring: Robin Williams, Billy Crystal, Julia Louis-Dreyfus, Nastassja Kinski