LOS ANGELES, Oct 19: – One of the most memorable scenes in the film ’12 Years a Slave’ is a long close-up of actor Chiwetel Ejiofor’s eyes, wide with amazement as his character regains his freedom after enduring the brutal bonds of slavery on Louisiana plantations. It is a defining moment for the British actor of Nigerian origin in the biggest film role of his career, one that many critics believe will yield him a best actor Oscar nomination. It is also a role that he wasn’t quite sure he was up for. (AGENCIES)