Despite being detained, silence and hidden from public view in maximum security Belmarsh Prison, Jullian Assange has become one of the loudest voices of free speech of our times. Examining the meaning and significance of the insights that WikiLeaks shared with the world, the resulting behaviour of the governments involved, the extraordinary personal risk taken by Assange, and the wider fundamental issues around press freedom that affect all of us and our right to know.

BBFC insight: images of real violence and dead bodies