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Chris Costner Sizemore

Chris Costner Sizemore

In a HARDtalk interview broadcast on 25 March 2009, Stephen Sackur talks to Chris Costner Sizemore, who for many years suffered from a multiple personality disorder.

Chris Costner Sizemore has been called the most famous psychological case study in history.

Growing up, her young mind was inhabited by a host of different personalities.

Her extraordinary experiences gave rise to a newly defined mental illness - multiple personality disorder - and her story was turned into an Oscar winning movie.

Five decades after the first diagnosis are we any closer to understanding the mysterious rise of the alter ego?

Chris Costner Sizemore talks to Stephen Sackur.

Hardtalk is broadcast on BBC World News at 0430, 0930, 1430, 1830 (except Middle East and South Asia) and 2130 GMT

HARDtalk is also broadcast on the BBC News channel at 04:30 & 23:30 GMT

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