The fourth installment of the "Die Hard" series will have "something to do with computers," Bruce Willis revealed to Empire Magazine. That may explain the title of the fourth film. Other than that, he’s keeping the plot details close to his vest. As to whether or not his character will be killed in the new movie, he said, "I like keeping those things a secret." He then went on to say that he doesn’t know "what the outcome of ‘Die Hard 4.0‘ will be" but "feels like it should be the last one." "Right now, if I retired the series, I would retire undefeated." The script, he said, will be done by summer for a fall shoot. His character John McClane will be retired from the police force in the new film. Willis will have a movie coming out March 11th called "Hostage."