Oranges and Sunshine is the revelatory tale of the British child migrants who were transported to Australia in the 1960s and 70s. The directorial debut of Jim Loach, son of director Ken Loach, this inspirational film tells a powerful story of injustice and the ability of one person to transform the lives of many.

Starring Emily Watson, Hugo Weaving and David Wenham, Oranges and Sunshine tells the compelling story of Nottingham social worker Margaret Humphreys, who spent years uncovering the disturbing details of the forced deportation of thousands of children. Margaret's whistleblowing campaign helped more than 7,000 Australians to discover their true identities and reunited numerous long-estranged families. Ultimately it even secured official apologies and financial support from the British and Australian governments.

Now you have the opportunity to read the inspirational memoir that inspired the film.

We are giving away 25 copies of Margaret Humphreys' book, Oranges and Sunshine (also known as Empty Cradles). Simply enter your details below to be in with a chance of winning. Good luck.

Oranges and Sunshine opens in UK cinemas on 1 April.

This competition is only open to UK residents