Actress will also produce Jessop adaptation

Katherine Heigl will star in and produce the feature film adaptation of “Escape,” the bestselling memoir of Carolyn Jessop, whose testimony helped convict polygamist sect leader Warren Jeffs.

Relevant Entertainment and Como Court Prods. acquired the book. Michael Menchel and Cat Williams will produce with Heigl and her Abishag partner Nancy Heigl.

Jessop was born into the Fundamentalist Church of Latter Day Saints sect. At 18 she married a man 32 years her senior; at 35, she fled with her eight children.

Equity financier Como Court Prods. will pay to develop the script.

Relevant was started by Menchel, the former longtime CAA agent who became a manager at Artists Management Group before shifting to producer. The shingle has set up several projects at studios including a Paramount film Menchel is producing with Simon Cowell about tenor Paul Potts and the family film “The Tortoise & The Hippo” at Walden Media.

Heigl is shooting the Robert Luketic-directed Sony/Lakeshore comedy “The Ugly Truth.” Abishag projects include “Alpha Moms,” a Ryan Shiraki-scripted comedy for Warner Bros., which the Heigls are producing with Code Entertainment’s Larry Kennar and Rick Berg, and the Fox 2000/Spyglass action comedy “Drawn Together.”

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