Pierce has shown time and again that he can suffuse politically-charged material with rich emotion. But he usually does that on HBO. Currently, on "Treme," this Big Easy-born actor is etching a funny, seductive and sometimes wrenching portrait of a jazz musician caught in the riptides of post-Katrina New Orleans. That's Pierce blowing his trombone, above.) It should be a double treat to see him tackle an equally vivid, complex milieu on the big screen -- and to hear him talk about it afterward.