Hilary Swank and her producing partner Molly Smith have optioned screen rights to the bestselling nonfiction book, French Women Don't Get Fat, with Heather Hach set to adapt.

According to The Hollywood Reporter, Swank is eyeing the project as a potential starring vehicle, and Smith will produce via their recently formed Alcon Entertainment-based 2S Films, along with Aaron Geller and Darryl Porter of PorterGeller Entertainment.

French Women Don't Get Fat, written by former Veuve Clicquot champagne executive Mireille Guiliano, was a domestic and international sensation when it was first published in 2004. The nonfiction, lifestyle book offered insight on how French women manage to stay slim despite enjoying such calorie-rich fare as wine and pastries.

The project is being developed as a romantic comedy following a "girl-next-door champagne company middle manager who learns some tough life lessons which help her become the woman she's always wanted to be," 2S and PorterGeller said.

No production date has been set.