Amy Winehouse's goddaughter believes the new biopic of the late icon's life will not depict the woman she knew.

Amy Winehouse

Amy Winehouse

Dionne Bromfield was the late singer's musical protege and confessed that whilst she wants to see the film that tells her godmother's story - and includes interviews from 80 of the singer's friends, family and collaborators - she did not want to be a part of the making of the documentary.

She said: "No film is ever going to be able to tell me about the Amy I knew."

The 'Back to Black' hit-maker was a global celebrity and a multiple Grammy Award winner when she died in 2011 of alcohol poisoning at her home in London at the age of 27.

Her family are unhappy with the outcome of the biopic - made by the team behind the BAFTA-winning film 'Senna' - and released a statement before the documentary was shown at Cannes in May.

They said: "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."

Speaking about her godmother's life in an interview with The Mail on Sunday's You magazine, Dionne - who is now 19 and a performer herself thanks to the support of the famous singer - says Amy was happier than her public image portrayed her to be.

She said: "I'm not stupid. I knew what was going on. But Amy never showed me the bad side of her life. Even if she was unhappy she would always smile for me.

She added: "She gave me heaps of advice. She would encourage me to write my own songs, just as she wrote hers. She said the secret was to pour out my heart ... she said a song could be created out of anything if you learned to express yourself."

'Amy' is due for release July 10.