Pratchett film to spark 'right-to-die' debate

The last moments of a terminally ill man who travelled to an assisted suicide clinic to end his life will be shown in a documentary presented by best-selling author Terry Pratchett.

Viewers of the BBC2 show will see the writer, whose Discworld series of books have sold millions of copies worldwide, at the Dignitas clinic in Switzerland with the 71-year-old motor neurone disease sufferer named only as Peter.