The song "If Ever I Would Leave You" won a Golden Globe Award for Best Original Song Written for a Motion Picture, even though it was not written especially for the film but for the original stage production of "Camelot", and all the other nominees were songs especially written for films. This is the only instance in the history of the Golden Globe Awards that this has happened.
Alan Jay Lerner used the film screenplay, rather than his original stage version, as the basis for the 1980's Broadway revival of "Camelot".
In addition to actual Medieval castles in Spain used in this film, a castle was built on the back lot of Warner Brothers Studios for closer shots and direct storyline action. Long known at the studio as the "Camelot Castle" after filming ended, it was used in other films. In 1972, the Camelot Castle was renovated into a Tibetan Lamasery for the musical remake of Lost Horizon (1973), and it was used extensively in the TV series "Kung Fu" (1972). In the 1980's, the back lot castle was torn down to make room for an office building. Fortunately, the Alcazar de Segovia and the Coca Castle remain in Spain where they are both popular tourist attractions.
Two separate Medieval castles in Segovia, Spain, were used in this motion picture; one as Sir Lancelot's Castle in France and the other as Camelot itself in various long shots. The Alcazar de Segovia, with its mansard roofs and numerous turrets reminiscent of Disneyland's Sleeping Beauty's castle, was depicted as Sir Lancelot's home in Gaul (France)in this film. The opening and closing scenes were also filmed on the grounds of this same castle which may be seen in the background in the light of the approaching dawn. For Camelot itself, the Coca Castle, also in Segovia, was used in long shots and background shots to depict the towers and battlements of Arthur's legendary kingdom.
The knights' armor in the film was brought to Hollywood from Spain, where it had been used in El Cid (1961). It was later rented to the Disney studio for Bedknobs and Broomsticks (1971).
Richard Burton, who had played the role of King Arthur on Broadway in the original 1960 production, was offered the role in the film. Burton had had a huge success with Lerner & Lowe's show, winning a 1961 Tony Award for Best Actor in a Musical, but he turned the film down. Burton subsequently played King Arthur in the 1980's Broadway revival of "Camelot".
Queen Guenevere's wedding dress was made of natural materials. The dress was made from fishing nets, the bodice had little seashells sewn on and on the train were hundreds of hand-sewn pumpkin seeds.
Julie Andrews was asked to reprise her stage role of Guenevere, but had become such a popular film star by this time that she was unable to accept the role. Ironically, Jack L. Warner, who produced the movie version of Camelot (1967), was the same man who produced the film version of My Fair Lady (1964), and who had given the role of Eliza Dolittle to Audrey Hepburn because he thought that Julie Andrews would not be a big enough box-office name.
"Camelot" was adapted from a Broadway musical that opened at the Majestic Theater in New York on Dec. 3, 1960 and ran for 873 performances. Richard Burton, Julie Andrews and Robert Goulet were in the original cast.
In the original musical, Merlin is lured away from Camelot by the spirit of Nimue, who sings the song "Follow Me." Nimue was dropped from the film, and the song is sung by a chorus during the last of the scenes with Merlin.
Richard Burton won the 1961 Tony Award (New York City) for Actor in a Musical for "Camelot" and his only Tony win for his role as King Arthur.
Franco Nero was cast because he had the right look to play Lancelot.