Now a Major Feature Length Documentary: 'Cassius X: Becoming Ali’ (Cinema release Spring 2023) 

Miami, 1963. A young boy from Louisville, Kentucky, is on the path to becoming the greatest sportsman of all time. Cassius Clay is training in the 5th Street Gym for his heavyweight title clash against the formidable Sonny Liston. He is beginning to embrace the ideas and attitudes of Black Power, and firebrand preacher Malcolm X will soon become his spiritual adviser. Thus Cassius Clay will become ‘Cassius X’ as he awaits his induction into the Nation of Islam.

Cassius also befriends the legendary soul singer Sam Cooke, falls in love with soul singer Dee Dee Sharp and becomes a remarkable witness to the first days of soul music. As with his award-winning soul trilogy, Stuart Cosgrove’s intensive research and sweeping storytelling shines a new light on how black music lit up the sixties against a backdrop of social and political turmoil – and how Cassius Clay made his remarkable transformation into Muhammad Ali.

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'Fascinating ... a different take on its subject, like a wayward B-side of a highly familiar tune'

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'A vivid, knowing close-up of a crucial year in the life of boxing’s most iconic figure'

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'Stuart Cosgrove's deep research and very human storytelling highlights how black music lit up the Sixties against a backdrop of political turmoil - and how Cassius Clay began his remarkable transformation into Muhammad Ali winning the world heavyweight title from scratch three times in the process'

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'You can almost smell the liniment and sweat and hear the classic songs of Tamla Motown when you start reading Mr Cosgrove’s work Cassius X... a compelling reminder of why he [Muhammad Ali] made such an impression'

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'A benediction of a book about the early years of the sporting deity. Cassius X is a unique take – no easy feat when faced with an athlete who has been embalmed in books over the decades'

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'Equivalent to a biopic which portrays the fast-moving 1960s social, political and cultural scene and gives a fascinating insight into a lesser-known part of the legendary champion's life'

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'A riveting profile of one of the world’s greatest sportsmen and the world he moved in'

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'No ordinary tale of the life of The Greatest. Tells the story of the many social forces that shaped the life of the former world champion'

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'A terrifically fresh insight into sport’s greatest superstar'

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'Another belter from The Soul Trilogy author... shines a light on how black music lit up politically turbulent 1960s America'