Speaking in the Center for Film Studies on Sept. 24, actor Bradley Whitford ’81 shared wisdom on subjects ranging from show business to politics to dealing with the insecurity inherent in being an actor. Whitford addressed an audience of film and theater majors, prospective majors and alumni. Best known for his role as Josh Lyman on The West Wing, Whitford was recently elected to Wesleyan’s Board of Trustees. He has also had starring roles in the shows Studio 60 on the Sunset Strip and The Good Guys. Recently, he co-starred in a film, “Cabin in the Woods,” written by Joss Whedon…