This short interview filmed on a digital camera under an overhang during a rainstorm at the Superman Celebration begins at 1:52:
The interviewer is the kind Steve Younis, maestro of the Superman Homepage. We'd met in person for the first time mere moments before. He introduces me as "Mike." He did correct himself with no prodding, but even if he hadn't, it's still better than spelling "Marc" with a "k."