Mproducer, writer, miscellaneousMarvin Kupfer4 creditsNo biography recorded yet.Directing (1)WednesdayWednesday1974 · DirectorWriting (1)WednesdayWednesday1974 · screenplayCrew (1)WednesdayWednesday1974 · producerActing (1)17 Days Down the Line17 Days Down the Line1972 · Self