In this photo provided by the Las Vegas News Bureau, actor Anthony Hopkins walks the red carpet at the Keep Memory Alive ?"Power of Love Gala?" fundraiser honoring Muhammad Ali?'s 70th birthday at the MGM Grand Garden Arena in Las Vegas on Saturday, Feb. 18, 2012. Proceeds benefitted the Cleveland Clinic Lou Ruvo Center for Brain Health?'s work toward enhanced treatments and research of neurocognitive disorders and the Muhammad Ali Center in Louisville, Kentucky. (AP Photo/Las Vegas News Bureau, Brian Jones)