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"Be at least twenty miles away when it goes off", warns the Soviet officer who instructs Gobinda about the atomic bomb. While that is certainly good advice, the surface detonation of a one hundred kiloton nuclear weapon would be easily survivable already at one third of that distance, and even closer if you knew of it in advance, and took minor precautions. For a weapon that size, the five-PSI air blast radius, where most residential buildings would be blown apart, "only" goes out to a radius of some twenty-four hundred meters (one and a half miles). The thermal radius, where you'd get third degree burns, if caught in the open, is about four thousand meters (two and a half miles). On the other hand, you had better stay upwind. This being a surface burst, you could get severely irradiated even around seventy-two kilometers (forty-five miles) away after a few hours, if caught in the main plume.
According to Sir Roger Moore's commentary in the DVD during the dinner scene, the eyeball in the stuffed sheep's head that Louis Jourdan eats is made out of marzipan.
In his book, "As You Wish: Inconceivable Tales from the Making of The Princess Bride," Cary Elwes states that before he was an actor, he worked as a production assistant on this movie. One of his jobs was to drive Sir Roger Moore to work on the set of the movie. He further goes on to say that he was "a nervous wreck" being constantly afraid of getting in a car accident and accidentally killing Sir Roger Moore, so he drove very slowly. On one occasion, Mr. Moore calmly looked up from the newspaper he was reading while being driven to work by Elwes and stated politely, "You can speed up a little if you want to."
It was not a planned part of the Indian cabbie chase sequence when a cyclist rode between the two battling vehicles, providing added suspense.
Released in the same year as the rival "Warner Brothers" James Bond production "Never Say Never Again (1983)," which showcased the return of Sir Sean Connery to the role. This movie earned $187 million worldwide. "Never Say Never Again" (1983) earned $160 million.
Robert Brown appears as "M" for the first time, replacing Bernard Lee, who died between "Moonraker (1979)" (Lee's final appearance as M) and "For Your Eyes Only (1981)," which left M out entirely.