12 Years A Slave star Chiwetel Ejiofer on his moment

Media captionChiwetel Ejiofor plays Solomon Northup, who was sold into slavery in 1841

Chiwetel Ejiofor has admitted he was so daunted by the responsibility of playing a free man forced into slavery he waited a "day or two" before agreeing to take the leading role in 12 Years A Slave.

The controversial film tells the true story of Solomon Northup, who was kidnapped and sold into slavery in 1841.

Here's my interview with him.

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