An upcoming film about the life of Amy Winehouse is “misleading” and “unbalanced”, according to the singer’s family.

Winehouse, who was found dead aged 27 at her home in Camden in 2011, is the subject of a documentary called Amy, which will be shown at the Cannes Film Festival next month.

Having apparently given their backing early on, Winehouse’s family have now criticised the end result and distanced themselves from it.

In a statement, a spokesman for the family said they "would like to disassociate themselves from the forthcoming film about their much missed and beloved Amy".

He went on: "They feel that the film is a missed opportunity to celebrate her life and talent and that it is both misleading and contains some basic untruths.

"There are specific allegations made against family and management that are unfounded and unbalanced."

The film is directed by Asif Kapadia, the man previously behind the acclaimed Senna documentary.

In a statement, the makers of the film hit back at the Winehouse family’s claims and said: "When we were approached to make the film, we came on board with the full backing of the Winehouse family and we approached the project with total objectivity, as with Senna.

"During the production process, we conducted in the region of 100 interviews with people that knew Amy Winehouse; friends, family, former-partners and members of the music industry that worked with her.

"The story that the film tells is a reflection of our findings from these interviews."