Having turned in one of the finest performances of the year in Selma, portraying Martin Luther King, British actor David Oyelowo is now tackling a rather different role – this time embodying serial killer Brian Nichols, in his latest endeavour Captive.

We discussed getting in the head of somebody so complex, while he also discusses his role in the forthcoming biopic of Nina Simone.

Captive is released on September 25th.