ch.lRelated OBITUARIESDennis Hopper | 1936-2010See all related8 In a more than five-decade acting career that was influenced early on by working with James Dean and studying at the Actors Studio, he made his film debut as one of the high school gang members who menace Dean in the 1955 classic Rebel Without a Cause.Hopper went on to appear in more than 115 films, including Apocalypse Now, Cool