A correction was made to this article on Jan. 18, 2005.

David Brownstein, formerly the longtime agent of “Sopranos” star James Gandolfini, has become a manager and teamed with Felicia Sager and Julie Bloom to form Art/Work Entertainment.

Shingle’s focus will be actors, writers and directors.

Brownstein was a Gotham-based prosecutor who became technical adviser to the “Law & Order” pilot, liked what he saw and joined the legal affairs department at Touchstone before becoming an agent and ultimately partner in Writers & Artists. He repped Gandolfini on every contract he signed with “The Sopranos” but parted company with the actor, who already has managers.

Sager previously worked at ICM, Triad and Gersh before becoming a manager. Bloom was an agent at WMA. Sager and Bloom formed a management partnership prior to this one.

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Based in Beverly Hills, Art/Work Entertainment opened its doors with writers Erin Cressida Wilson (“Secretary”), Tim Schlattman (“Smallville”) and Shintaro Shimosawa & Jim Morris (“The Dead Zone”); and actors Tisha Campbell-Martin, Ione Skye, Ben Gleib, Michael Lerner, Michael Pena, Yanic Truesdale and neophyte Brianne Davis, just cast in “Jarhead.”