Mid-Film Crisis concludes a comical trilogy in which single filmmaker "Kara" wants to get married (Bachelorette, 34), have a baby (39½ ), and make a film about it. "Mom" argues that her daughter's artist lifestyle and livelihood choices are an obstacle to both. In this behind-the-scenes look at making the feature film 39½, Kara and Mom resume their bantering in both their real and fictionalized roles - now with cast and crew members weighing in.—Kara Herold