Baby Boom is a 1987 romantic comedy film directed by Charles Shyer, written by Nancy Meyers and Shyer, and produced by Meyers and Bruce A. Block for United Artists. It stars Diane Keaton as a yuppie who discovers that a long-lost cousin has died, leaving her a six-month-old baby girl as inheritance. Wikipedia
Fritz Curtis: (to an executive) This is Elizabeth. J.C. is taking care of her for a while.
J.C. Wiatt: Well, Fritz, I'm actually keeping her a little longer than that.
Fritz Curtis: Oh? How long?
J.C. Wiatt: (distracted) Oh, forever!