See Benedict Cumberbatch as WikiLeaks leader Julian Assange: The Fifth Estate film trailer released

Assange has described the film, released later this year, as a 'massive propaganda attack on WikiLeaks'

Cinemagoers today got their first taste of the upcoming film about Julian Assange and WikiLeaks, starring Benedict Cumberbatch.

The Fifth Estate, directed by The Others director Bill Condon, is set for first release on 11 October in Sweden and the US - two countries in which Assange is a wanted man.

The Australian has been living in Ecuador's embassy in London for over a year, and has been granted political asylum by the country – a move that has sparked a diplomatic spat between London and Quito, as Britain has refused to grant him safe passage to the South American country.

He is worried that authorities in Sweden – who want to question him over sexual allegations by two women, which he denies – will extradite him to the US where he could face questioning over the publication of classified documents.

He has described The Fifth Estate as a "massive propaganda attack on WikiLeaks and the character of my staff."