The award-winning film The Hurt Locker opens this weekend in Chicago. The film centers on a bomb squad technician who works Baghdad’s fearsome streets. The film’s title alludes to the mental and physical pain that the bomb victims suffer. Journalist and screenwriter Mark Boal wrote the psychological thriller from his first-hand observations. Boal and The Hurt Locker’s director, Kathryn Bigelow, spoke with Eight Forty-Eight’s film critic Jonathan Miller.