The sex-tape featuring Marilyn Monroe is a hoax, says a leading Monroe expert.

The New York City based memorabilia collector, Keya Morgan has spawned a rumor of 16 mm film footage said to be Marilyn Monroe engaging in oral sex with an unknown male participant in the early 1950's when she was just a starlet.

According to Morgan, he brokered the sale of this claimed 15-minute lasting reel to a New York businessman earlier this month for a whopping US 1.5 million dollars.

"You can see instantly that it's Marilyn Monroe, she has the famous mole. She's smiling, she's very charming, she's very radiant, but she's known for being radiant," Defamer.com quoted Morgan, as saying.

The happy buyer of this supposed film chooses to remain anonymous but says he has no plans to market the tape.

Morgan states: "He's just going to lock it up."

According to Mark Bellinghaus, the leading Marilyn Monroe expert, there are too many holes in the Keya Morgan story.

Bellinghaus came to the conclusion after talking to Morgan over the phone.

"What Keya Morgan is promoting equates to questionable stories generated simply to sell another book or push another cheesy documentary. Just looking at Mr. Morgan's cast list is enough to know that this is more of the same conspiracy rehash," he said.

"At the time of our conversation with him, we immediately discerned that he was one of them only out to exploit Marilyn Monroe and to come up with something new to fuel the rumor mill of her life," he added.