Then-unknown Raquel Welch doubled (uncredited) for Dame Elizabeth Taylor in some of her beach scenes on-location at Big Sur, California.
According to one published report, the redwood sculpture of a nude Dame Elizabeth Taylor was destroyed accidentally years later when it tipped over and smashed, and was discovered to be teeming with termites.
The local hangout is appropriately named Nepenthe, from the Greek word meaning "drug of forgetfulness", intended to wash away sorrow. Though it is a set built for the film, it's a replica of an actual local restaurant that has been open since 1949.
According to Sammy Davis Jr. in his movie memoir "Hollywood In Suitcase", originally he was offered the role of Cos Erickson and even signed the contract, but had to withdraw when his "Golden Boy" stage show opened early.