Elisabeth Rohm has joined Jennifer Lawarence in “Joy.” She will play the sister of Lawrence’s Joy Mangano. Edgar Ramirez and Robert DeNiro are also starring in the David O’Russell film, in which Lawrence portrays the inventor of the Miracle Mop while she’s a struggling Long Island single mother of three children.

Rohm starred in Russell’s “American Hustle” as the wife of Carmine Polito, played by Jeremy Renner. John Davis and John Fox are producing “Joy” for Fox 2000 along with Ken Mok. Shooting has started in Boston with Fox planning a Christmas release. Rohm is repped by Artists International Management, Untitled Entertainment and Felker Toczek Suddleson Abramson LLP.

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