Mary-Louise Parker (Weeds) will play Michael Douglas' girlfriend in Solitary Man, a film about an ex-auto dealership owner whose career and marriage have collapsed because of his less-than-ethical behavior.

According to The Hollywood Reporter, Parker will play Jordan, a high-powered society beau of Douglas' character, Ben.

Susan Sarandon, Danny DeVito and Jenna Fischer are co-starring in the Millennium Films feature. Brian Koppelman and David Levien will direct from Koppelman's script.

Paul Schiff and Steven Soderbergh are producing alongside exec producers Avi Lerner, Danny Dimbort, Trevor Short, Moshe Diamant and Joe Gatta.

The shoot, set to begin next month in New York.

Solitary Man was released May 21st, 2010 and stars Michael Douglas, Susan Sarandon, Danny DeVito, Mary-Louise Parker, Jenna Fischer, Imogen Poots, Jesse Eisenberg, Richard Schiff. The film is directed by Brian Koppelman, David Levien.