Acting
Kim Stanley's volcanic, Oscar-snubbed performance — she IS the movie.
Direction
Cromwell frames fame like a horror film, all mirrors and isolation.
Writing
Paddy Chayefsky's debut script, loosely based on Marilyn's life.

Director
John Cromwell
Trivia, insights & behind the scenes
Kim Stanley originated this role on TV in 1955; the film bombed, she refused to promote it, and her film career never recovered.
Chayefsky later denied Marilyn was the sole inspiration, but the timeline matches — he wrote this during her peak fame and private despair.