Producers of David Mamet's Speed-the-Plow have filed a grievance with Actors' Equity against Jeremy Piven, who left the production with what his doctors called mercury poisoning, BroadwayWorld.com reports. No date for the arbitration proceedings has been set. Piven has gone to another set of doctors for a second opinion, but details have not been revealed, TMZ reports.
(More Jeremy Piven stories.)