The movie classic High Noon has quite a backstory. Read this review:

High Noon: The Hollywood Blacklist and the Making of an American Classic by Glenn Frankel

High Noon is one of my favorite western-themed movies along with The Searchers and both versions of True Grit. What I didn't know about High Noon was that many of its principle developers -- producer, actors, screenwriter, etc...-- were involved either directly or indirectly in the Hollywood blacklist scare of the 1950's. Many concerned citizens and lawmakers alike had great fear of communist influence in American industry and culture, and came down brutally hard on Hollywood in particular. If you had any personal history with the Communist party or were even left-leaning, your career was in great jeopardy. There were even whispers of new concentration camps being developed if the scourge of communism could not be eliminated. Basically, you lived in a free country -- but perhaps not quite as free as you once thought. 

Many of the great Hollywood legends appear in this book, from Gary Cooper to John Wayne to Bogie & Bacall to the powerful studio heads and two future Presidents of the United States. Some individuals distinguished themselves with great courage while others caved under intense pressure and named their friends and associates to government investigators. Under all of that suspicion, however, High Noon was made and became a Hollywood classic, mirrored the times in many ways. It's been nearly seventy years later and yet the film still resonates. It's timeless. It's High Noon.