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10. Kristina and Michelle Kennedy, Baby Boom (1987)
Can a yuppie juggle child-rearing, romance, and a career? "Tiger lady" J.C. Wiatt (Diane Keaton) inherits a pesky moppet from a distant relative, puts it up for adoption, changes her mind, loses her job and boyfriend, moves to the country - and finds fulfillment, natch. The Kennedy girls who played baby Elizabeth probably have kids of their own by now. Fortunately, their early cuteness was captured for all eternity, clinching tenth.
Baby Boom, Kristina/Michelle Kennedy, Diane Keaton, 1987. © United Artists. Courtesy of the Everett Collection.

