The film reveals that it was actually Whitney's brothers who introduced her to drugs when they grew up in the tough streets of Newark, New Jersey.
Nick says it was record label boss Clive Davis who who was able to spin Whitney's background and transform her into an artist beloved by white America.'I'd always been fed the line that Bobby Brown had introduced her to drugs so it was a kind of a revelation that it was more the brothers from Newark,' Nick said.
Nick said: 'Bobby Brown loved Whitney enough to say if Robyn Crawford had been around he believed Whitney would still be alive.
I think she did an amazing job of keeping her on the rails, keeping her more or less on time for interviews and that kind of thing.
Bobby and Robyn had some physical altercations and I think there were times when he wasn't always the winner but then Whitney would come in between them and she would pour the oil in the trouble waters.'Whitney died in 2012 when she drowned after suffering a massive heart attack, brought on by years of cocaine abuse.
Her friends and family - and even Bobby Brown - believe that she might still be alive if she was allowed to be with Robyn.
The principle of the app will be almost identical to Tinder, with the famous Swipe to validate or not the games but Bumble will stand out by offering more than just a photo to decide.
On Bumble, users will also have access to information regarding the position held, the company in question and even university education.From contacting to the first message, the gentlemen will have to wait and wait for the fairer sex choose whether or not she is interested.Not a concept so foreign to the site Adopteunmec (also available in app) for a Facebook-connected formula that retrieves the simplicity of use and Tinder connection.Nick said: 'One of the things that surprised me is that he never came out in his defense. Then there was the whole domestic violence thing too and I think everybody in that group was pretty violent with each other.I think Cissy [Houston, Whitney's mother] was violent with Whitney.Speaking exclusively to Mail Online, documentary maker Nick Broomfield credits Robyn for keeping Whitney 'on the rails' but believes her fans are too obsessed with the intimate details of their relationship.