Boy shocks experts by describing in detail his past life. And what he said about it is eerily accurate. (Video)

A mother's life was turned upside down when her five-year-old son told her that he used to be a Hollywood actor and was reincarnated.

It all began when her son was four, and experienced vivid and haunting nightmares. It was not until one year later however, when Ryan Hammons was five, that he shared his secret. Speaking to US program Today, mum Cyndi, from Muskogee, Oklahoma, said: "He said mom, I have something I need to tell you - I used to be somebody else."

But it became clear to her that this was not just a child's imagination running away with itself, due to the shocking level of detail he would recall from his past life. He told his mother of his previous experiences - travelling the world, working with stars like Rita Hayworth, and dancing on Broadway.

She added: "His stories were so detailed and they were so extensive, that it just wasn’t like a child could have made it up." Cyndi, who was raised as a Christian in a Baptist church, was not taught to believe in reincarnation. However her son's incredible revelations left her feeling the need to research his claims - and then is when it began to feel real.

"We found the picture, and it changed everything,” she said.

The photo was found in a library in a Hollywood memorial book, showing a shot from a 1932 film called Night After Night. Ryan said: "She turns to the page in the book, and I say ‘that’s me, that’s who I was.'"

The actor was an extra in the film, with no lines.

As the details of Ryan's claim became more specific, Cyndi sought out help from Dr Jim Tucker, a professor of Psychiatry and Neurobehavioral Sciences at the University of Virginia.

Speaking of Ryan's case, he said: "These cases demand an explanation.

"We can’t just write them off or explain them away as just some sort of normal cultural thing."

A film archivist was able to identify the unknown actor as Marty Martyn, a former movie extra who later became an agent in Hollywood. The former actor died in 1964.Professor Tucker added: "If you look at a picture of a guy with no lines in a movie, and then tell me about his life, I don’t think many of us would have come up with Marty Martyn’s life.

"Yet Ryan provided many details that really did fit with his life."

Ryan would regularly talk about his two sisters, trips to Paris, five wives and living on a street with the name Rock in it. He also talked about how much he missed an orange soda called “True-ade.”

Tucker said “This information wasn’t on the Internet. After investigating what Ryan said, all of it turned out to be correct. Martyn had a penchant for orange soda, lived on Roxbury Drive in Beverly Hills, had two sisters and did indeed spend time in Paris, with his fifth wife. “He said he didn’t see why God would let you get to be 61 then make you come back as a baby,” Tucker said, noting that the death certificate states Martyn died at 59.

While close, it seemed at first that Ryan was wrong about a very important detail. “Since then, I’ve gotten information that the death certificate was incorrect, which would have made Marty Martyn 61 when he died. Ryan was right all along.”

Below you can see the video with more information. Pardon the electronic voice narration.

What do you think? Do you believe in reincarnation?