BRITNEY Spears’ book has smashed sales records for a celebrity memoir and it could soon be doing the same in a different format.

Sources in the US have claimed a bidding war has been sparked to bring her story to the screen.

Her management company CAA has received bids to turn it into a TV series, a feature film or even a documentary.

There have already been two documentaries made about Britney’s life which followed the #FreeBritney movement, prior to her release from her conservatorship.

The book covers all sorts including her romance with Justin Timberlake, which included a secret abortion, her rocky relationship with her family and the ins and outs of her mental health battles.

It has proved to be an explosive read and she is already planning for a second book to be released next year.

Fans were stunned after reading the tome, where Britney said she contemplated taking her own life during the darkest moments of her conservatorship.

Britney, 41, wrote: “How had I managed not to kill myself in that place, put myself out of misery like you’d shoot a lame horse.

“Believe that almost anyone else in my situation would have.

“Thinking about how close I came to doing just that, I wept.”

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Britney, who was placed under a conservatorship by her father Jamie in February 2008, said she reached her lowest ebb during a two-month stay in a mental health facility.

She said she was forced there against her will when Jamie had her assessed by a doctor who said she was “demented”.

Britney explained: “My father said that if I didn’t go, then I’d have to go to court and I’d be embarrassed.

He said: ‘We will make you look like a f***ing idiot and trust me, you will not win.’

“It was like a form of blackmail and I was being gas lit. I honestly felt like they were trying to kill me.

“They kept me locked up against my will for months.”

In the book, the Hit Me Baby One More Time star said she was also forced to take lithium – a mood stabilising medicine.

She added: “For years I’d been on Prozac but in the hospital they abruptly took me off and put me on lithium, a dangerous drug I did not want or need and that makes you extremely slow and lethargic.

“On lithium I didn’t know where I was or even who I was sometimes.”

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Recalling the regime she lived under, Britney said: “I couldn’t go outside.

“I couldn’t drive a car. I had to give blood weekly. I couldn’t take a bath in private. I couldn’t shut the door to my room . I was watched even when I was changing.”