Lots of casting news this week, and here is a short summary of who will star in what soon:

• Sigourney Weaver and Alia Shawkat are joining John C. Reilly, Ed Helms and Anne Heche in Miguel Arteta's comedy "Cedar Rapids," about man (Helms) sent to represent his company and save his colleagues' jobs at a regional insurance conference in Cedar Rapids. (Variety)

• Gerard Butler ("Law Abiding Citizen") is in talks to join Ralph Fiennes' directorial debut "Coriolanus," an adaptation of William Shakespeare's Roman tragedy. Butler would play Tullus Aufidius, commander of the Volscian army. Also on board: Fiennes, William Hurt, Vanessa Redgrave and Jessica Chastain. (THR)

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