Whitney Houston

Houston's half-brother Gary Garland-Houston and her assistant, Mary Jones, both made the claims against Dee Dee, who died in 2008.

The film, Whitney, is directed by Scottish filmmaker Kevin Macdonald.

Dee Dee Warwick is the younger sister of soul singer Dionne Warwick and was the niece of Houston's mother.

Whitney debuted in Cannes on Wednesday night.

The Warwick family has been contacted for comment by the BBC.

In Every Little Step, Brown claims he did not realise the reason they had a heavy black metal door on their projects apartment was because of mum Carole's risky venture but thought it was to discourage Jehovah's Witnesses.

According to the singer, one night when both parents were out, a 10-year-old Brown decided to prepare them a home-cooked dinner - but used cocaine by mistake.

With Whitney, filmmaker Nick Broomfield is exploring "the forces that made and then destroyed the singer" who defined an era of pop music.

Broomfield has made a reputation probing controversial subjects - from Kurt Cobain conspiracy theories in Kurt & Courtney to political corruption allegations in Sarah Palin: You Betcha!.

Houston's death from an accidental drowning in her Beverly Hills hotel room in 2012 stunned fans the world over, although substance abuse rumours had dogged her in her final years.

Gwinnett County Sheriff jail records, obtained by E! News, show Taiwo Sobamowo was also charged with financial identity fraud and having false identification documents. Sobamowo was in charge of taking care of Bobby Brown and Whitney Houston's daughter while she remained at Peachtree Christian Hospice until she passed away on July 26, six months after she was found unresponsive in the bathtub of her town home on Jan. 31. She was 22.

Sobamowo remains in the Gwinnett County jail in Lawrenceville, Georgia.

The Fulton County Medical Examiner said in a statement Sunday their office is not releasing details because of a Fulton County Superior Court order to seal the results. The 22-year-old Brown died in hospice care July 26.

Brown was the only daughter between Bobby Brown and the late Whitney Houston.

The Fulton County district attorney and Roswell Police Department have been notified of the findings.

About a dozen fans came out to the cemetery in Westfield, New Jersey, to pay their respects to Brown, 22, who died in Georgia last week six months after being found face down and unconscious in a bathtub at her home.

Holding pictures of Brown and Houston, fans crammed against police barricades as a gold-coloured hearse passed through the gates of the cemetery where Houston was buried three years ago.

Brown died after suffering irreversible brain damage in a still unexplained January incident at her Roswell home.