Actor Dennis Hopper has been diagnosed with prostate cancer and will take a break from travel to concentrate on treatment of the disease, reports the Associated Press. The 73-year-old 'Easy Rider' star is being treated through a "special program" at the University of Southern California, said his manager Sam Maydew, who added, "We're hoping for the best."

Essential Dennis Hopper Film Moments (Warning: Explicit)

'Easy Rider'

Classic 'Romance' Scene