She’s transformed herself into a variety of characters over her long and varied career.
But Keira Knightley has revealed that preparing to take on the roles had an adverse effect as her locks began to fall out.
Speaking to InStyle magazine she explained: ‘I have dyed my hair virtually every colour imaginable, for different films.
Hair today, gone tomorrow: She’s dyed her hair for a number of roles, but Keira Knightley has revealed that in doing so her luscious locks began to fall out
‘It got so bad that my hair literally began to fall out of my head.
‘So for the past five years I’ve used wigs, which is the greatest thing that’s ever happened to my hair.’
However, the star explained that becoming a mother had helped revive her limp locks.
Keira – who welcomed a daughter named Edie in 2015 with husband James Righton – revealed that since the birth her hair has been far thicker and curlier, even resulting in some accidental dreadlocks.
Hair-raising: Keira (pictured in 2015 L and 2004 R) revealed she had to wear wigs for her roles after ruining her lovely locks by bleaching them with hair dye
Style chameleon: Even when Keira kept her locks blonde between 2005 (L) and 2006 she still changed the tone of the colour and chopped off her her tresses
Luckily for Keira, her latest role in movie Collateral Beauty doesn’t seem like it will require a wig.
The starlet was seen filming alongside the star-studded cast earlier this year but rocked her natural hair colour.
The American comedy-drama tells the story of an advertising executive, played by Will Smith, who falls into a deep depression following a personal tragedy.
Happy hormones: Keira – who welcomed a daughter named Edie in 2015 with husband James Righton – revealed that since the birth her hair has been far thicker and curlier
Her next role will reportedly see the Oscar-nominated actress star as the Sugar Plum Fairy in a new Disney live-action version of The Nutcracker.
The live-action film – based on E.T.A. Hoffmann’s 1816 story The Nutcracker and the Mouse King – is titled The Nutcracker and the Four Realms.
Fit for a fairy! Keira’s next role will reportedly see the Oscar-nominated actress star as the Sugar Plum Fairy in a new Disney live-action version of The Nutcracker