The FBI had a file on Marilyn Monroe

One of the interesting facts about Marilyn Monroe is that she was being watched by the FBI. Due to Monroe's association with Miller and his "un-American" behavior, as well as a 1955 request she made to travel to the Soviet Union (She didn't actually travel there), the FBI likely filed a file on her.

The file lists some of the movie star's communist-leaning friends, whose identities alarmed both government officials and her own entourage. However, the previously heavily censored files don't reveal any fresh details concerning Monroe's passing fifty years ago. Letters and news articles found in the file demonstrate that the bureau was aware of the actress's alleged murder, but they don't demonstrate that any effort was made to look into the claims. Los Angeles investigators believed Monroe's death as a possible suicide.

The updated FBI papers do demonstrate how closely Marilyn Monroe was being watched for communist ties in the years before to her passing in August 1962. According to the archives, some people in Monroe's inner circle were worried about her friendship with Frederick Vanderbilt Field, who was excommunicated from his affluent family due to his socialist views. Despite all the attention paid to Monroe's proximity to alleged communists, the bureau never discovered any evidence that she was a party member.