After a long battle with prostate cancer, Dennis Hopper died Saturday at the age of 74 at his home in Venice, California. The Oscar-nominated actor was best known for acting and directing in the 1969 cult classic Easy Rider. His career spanned over half a century, including such hits as Rebel Without a Cause, Giant, Apocalypse Now, and Speed. He most recently made headlines for his messy divorce from Victoria Duffy in January.