Aaron Zigman has taken over scoring duties on the romantic comedy I Don’t Know How She Does It. He is replacing Rachel Portman who was originally attached to score the movie as reported earlier this summer. The film directed by Douglas McGrath stars Sarah Jessica Parker, Pierce Brosnan, Greg Kinnear, Christina Hendricks, Kelsey Grammer, Seth Meyers and Olivia Munn. The comedy follows a working mother who is desperately trying to juggle marriage, children and a high-stress job as a financial executive. Aline Brosh McKenna (The Devil Wears Prada, Morning Glory) wrote the screenplay based on a novel by Allison Pearson. Zigman has previously scored the Sarah Jessica Parker-starring film adaptations of Sex and the City. I Don’t Know How She Does It is scheduled to be released on September 16, 2011 by The Weinstein Company.