Controversial Madeleine McCann Doco Claims She's Still Alive

A controversial new eight-part documentary exploring the disappearance of Madeleine McCann is set to air on Netflix, going ahead against the wishes of the family.

The Disappearance of Madeleine McCann is a close look at the most famous missing child case in the world, interviewing 40 experts and figures connected to the ongoing investigation.

McCann's disappearance from her Portugal hotel room in 2007 when she was three years old fascinated the world, with parents Kate and Gerry McCann holding on to hope their daughter is alive.

"If you made a dozen movies out of this, no one would believe them," a voiceover in the newly released trailer says.

Madeleine McCann vanished from the holiday apartment in Praia da Luz, Portugal, on May 3, 2007. Photo: Getty.

The documentary will even air claims McCann is still alive, according to a report in The Sun. Julian Peribanez, the private investigator hired by the family, claims she is likely to be kept alive because, as a middle-class British girl, she would be more valuable to child traffickers.

"They usually go for lower-class kids from third world countries -- that's the main supplier of these gangs," Peribanez said.

However, McCann's parents refused to take part in the documentary, and even reportedly urged people involved in the case not to take part.

"We did not see -- and still do not see -- how this program will help the search for Madeleine and, particularly given there is an active police investigation, it could potentially hinder it," Kate and Gerry said in a statement last week.

"Consequently, our views and preferences are not reflected in the program."

Gerry and Kate McCann still hold out hope their daughter is alive. Photo: Getty.

There was even TV industry speculation the documentary failed to speak to key individuals involved in the case, reports The Guardian, instead heavily relying on interviews with Portuguese officials who initially investigated -- and have been accused of bungling -- the case, as well as two journalists who wrote a book on McCann. The Guardian also reports that many leading British journalists who reported on the case at the time refused to take part.

The documentary drops worldwide March 15 and is expected to arrive on Netflix Australia at 6pm AEST.

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