Niagara is an interesting intersection of cinema. For one, it was the first time Marilyn Monroe was given top billing, just before her succeeding ditzy blonde roles. And two, it was a Technicolor noir thriller at a time when color started to take over Hollywood. So it’s already pretty cool to see Monroe as a femme fatale, but Niagara thoughtfully improves upon that idea by taking the lust, envy, and jealousy surrounding Monroe’s stage persona and using it as the catalyst for a captivating murder mystery set in the honeymoon capital of the world. Niagara might be one of Monroe’s lesser known works, but it’s one that presented a dimension we wish she got to explore more in her career.