According to Keya Morgan, the memorabilia collector who brokered the deal, the film is believed to have been shot during the '50s, and was confiscated by former FBI head J. Edgar Hoover during the mid 60's in an effort to implicate John F. Kennedy or Robert F. Kennedy.
Morgan tells the New York Post that the film was originally discovered by an FBI informant who made a copy for himself before turning it over to the Bureau. Morgan located the informant's son in Washington DC and was surprised to discover the film's existence.
"You see instantly that it's Marilyn Monroe-she has the famous mole," Morgan told the Post. "She's smiling, she's very charming, she's very radiant, but she's known for being radiant. She moves away, and then it [the footage] stops."
Morgan describes the black & white footage as silent and points out that Monroe-positioned on her knees in front of the unidentified man-never looks at the lens.
The film's new owner is said to have no interest in releasing the footage, citing respect for Hollywood's ill-fated icon.