The studio said it has acquired the worldwide rights to Phoenix Pictures' adaptation of the best-selling book series by Heidi Murkoff.
Heather Hach, whose script-writing credits include "Freaky Friday" and "Legally Blonde: The Musical," has been hired to pen the screenplay.
"'What to Expect When You're Expecting' is a brand that knows no boundaries, and millions of readers can attest to the warmth, wisdom and humor of its voice,"
Alli Shearmur, Lionsgate's president of motion picture production, said in a statement. "We're excited about this film as the first in a potential franchise with our friends at Phoenix Pictures, and working with Heather Hach positions us for a great start. Heather brings to the table very clever ideas, not to mention a terrific track record of creating comedies that are instant classics."
"We feel Heidi's book provides the perfect launching point to tell a funny and poignant story and start a wonderful franchise using this iconic and beloved brand," the upcoming film's producers said. "Heather has crafted a great tale, full of rich characters."