The object of her affection is Dexter – not another unreliable actor. but a newly adopted baby girl. Keaton, who just turned 50, follows in the footsteps of other glamorous celebs: Tom Cruise and Nicole Kidman adopted their second baby, a boy, in February; Rosie O’Donnell, who’s single, and Connie Chung (who’s married to Maury Povich) adopted baby boys in June. Keaton may have had a mothering urge at least since she “inherited” an infant in “Baby Boom” (1987), but perhaps it was playing pregnant in the current “Father of the Bride Part II” that made it irresistible.