There’s a scene in Postcards From the Edge, the 1990 adaptation of Carrie Fisher’s roman a clef about her rocky relationship with her mother, Debbie Reynolds, that now seems heartbreakingly prescient. Meryl Streep, playing the wisecracking daughter, is in the hospital after a drug overdose, and Shirley MacLaine, her moviestar mom, is at her bedside. “Ever since you were a little girl, I’ve had the feeling that I’d lose you, that you’d be taken away from me early,” confesses MacLaine’s character. Streep launches a zinger: “As opposed to later? When it would be more convenient?” They had some issues, this famous mother-daughter act, but there also was an abundance of love. When Fisher, 60, landed at LAX in critical condition Dec. 23 after a heart attack on a plane flying…
