Sherlock star Benedict Cumberbatch has revealed that he is ''thrilled'' with how his WikiLeaks film The Fifth Estate looks, although he admits to having initial concerns about how the drama would turn out.

The 37-year-old actor plays WikiLeaks founder Julian Assange in the film and explained that while he enjoyed the role, he was ''terrified'' before he watched the finished product for the first time.

Speaking to The Independent, Cumberbatch said: ''I'm thrilled with it. I'd seen it in the States and I was terrified. I cannot watch myself for the first time, especially playing someone who is so removed from me - because of everything, the appearance, the accent. Everything about him is different.''

The actor recently stated that an email from Julian Assange, asking him not to do a film about the emergence of the whistleblowing website, affected his portrayal of Assange in The Fifth Estate.