"The Barefoot Executive" "Scandalous John" "Million Dollar Duck" "The Wild Country" "Bedknobs And Broomsticks" The 100 millionth guest visits Disneyland. Walt Disney World, at a cost of $400 million, opens in Orlando, Florida. Roy Disney dies at age 78, just two months after the opening of Walt Disney World. Donn Tatum succeeds Roy as Chairman of the Board and Chief Executive Officer.