Sidney Kimmel Entertainment will finance and produce the dramedy from first-time feature helmer Thea Sharrock. Legacy, based on a spec script by novelist-screenwriter Gregg Hurwitz, centers on a single mom whose 12-year-old son talks her into committing the perfect crime. SKE’s Sidney Kimmel and Matt Berenson will produce with Jenette Kahn and Adam Richman of Double Nickel Entertainment. Jim Tauber and Bruce Toll executive produce. No casting or start date was announced. Sharrock has directed West End stage productions including Equus starring Daniel Radcliffe, which she subsequently transferred to Broadway. Says Kimmel: “Thea is a star in the world of contemporary British theater, and her transition to film in my opinion should be as seamless as Stephen Daldry’s and Sam Mendes.” SKE most recently produced this year’s Ryan Gosling-Bradley Cooper drama The Place Beyond the Pines.