One of the interesting things about this movie is what happened to the screenwriter, Carl Foreman. A three-time Oscar nominee for his writing (including High Noon), Foreman was blacklisted after his hostile testimony before the Communist-hunting House Un-American Activities Committee in 1952. he fled to Europe before High Noon was even released.
Many film critics contend that the screenplay for High Noon is based on Foreman's experiences, with Gary Cooper's Will Kane representing the embattled artists of the era being chased by the government for their alleged Communist ties.
Foreman remained in England for the remainder of his life, achieving success as both a writer and producer.
He was reinstated in 1997 along with other victims of the blacklist. He never had the opportunity to savor this as he died in 1984.
Source: The Internet Movie Database (http://www.imdb.com)