Why Britney Spears is refusing to cast 'desperate' Millie Bobby Brown in her biopic

Millie Bobby Brown has made it her 'life mission' to play Britney Spears in her upcoming biopic, changing her entire look and reportedly enlisting her famous father-in-law in her attempts to secure the part. But she is facing the biggest hurdle in the singer herself, insiders have told DailyMail.com Britney, 43, is currently unconvinced that the Stranger Things star can portray her after watching her audition tape 'Millie Bobby Brown is so desperate to play Britney that those close to her feel it has become her life mission right now,' an insider said. She doesn’t see the resemblance,' they continued Millie debuted a new blonde look earlier this month - one that is strikingly similar to Britney's - and has flaunted it all over social media The actress has even tried to use her famous father-in-law, Jon Bon Jovi's 'connections' to help her get the role, according to the insider Millie's drastic new look drew fierce criticism online - with some even mistaking her for 'someone's mom' after she was pictured with her younger sister. But the source added that no matter how hard Millie tries to 'embody Britney,' the singer is still 'not convinced' The insider continued: 'The casting process has been going on for months, and if Millie were the perfect choice, they would have cast her by now' She pointed out that she and Britney both shared the experience of 'growing up in public', and said she related to Britney when she would watch her old interviews.