 Virtually nothing of the screenplay by John Skipp (qv) and  Craig Spector (qv) made it into the film (according to Skipp, only  the phrase "Its a boy" was retained), while only around half of  Leslie Bohem (qv)s screenplay was kept. William Wisher Jr. (qv)  and David J. Schow (qv) did further rewrites, and the final  screenplay was put together just days before shooting by  Michael De Luca (qv).