As Variety reveals, the series "promises new interviews with people connected to the case, with input from more than 40 contributors in all", but not the McCann family.
The series will explore the disappearance of three-year-old Madeleine, who vanished from her bedroom while on holiday in Portugal with her family in May 2007 - a story that remains one of the world's biggest mysteries, nearly 12 years on.
Parents Kate and Gerry McCann have urged those around them to refuse to speak to the title's production company Pulse Films.
There are also claims that police leaked information to the press, while the area where Madeleine went missing was known for its high number of sexual predators and that human trafficking was a huge problem. Among the theories about what happened to Madeleine are that she was abducted during a burglary gone wrong, taken by child sex traffickers, or wandered off on her own and was killed. They also confirmed, "Our views and preferences are not reflected in the programme".
The documentary features suggestions of what happened to Maddie.
Due for release on March 15, watch the official trailer below. "We will not be making any further statements or giving interviews regarding this programme".
A Netflix documentary about the disappearance of Madeleine McCann will feature interviews with Jim Gamble QPM, from Bangor, Co Down, one of the UK's most experienced and outspoken experts on the safeguarding of children online. The McCann family were on holiday in Portugal when parents Gerry and Kate left Madeleine and her two younger twin siblings sleeping in their holiday apartment, while they dined with friends in a restaurant 180 feet away.
Media at the time called the case "the most heavily reported missing-person case in modern history". The missing toddler's face was plastered all over Europe through posters and billboards and British tabloids have been obsessed with the case for years, fueling controversy and conspiracy theories.
No, Gerry and Kate Mcanns have not taken part.