Speaking at the Cannes Film Festival in France, Willis--who stars as policeman John McClane in the Die Hard films--revealed the highly anticipated sequel is expected to start filming soon. He said, Were as close as weve ever got to getting Die Hard 4 started. It wont be called Die Hard 4 but that will be the story. Hopefully it will be out next summer. The movies plot had to be rewritten after last years Hurricane Katrina tragedy--the original screenplay involved an oil tanker explosion that sends huge waves flooding into New Orleans, Louisiana.