Chiwetel Ejiofor has said how proud he was to shoot his new film H alf Of A Yellow Sun on location in Nigeria.
The British actor, whose parents are Nigerian, stars with Thandie Newton and John Boyega in Biyi Bandele's big-screen adaptation of Chimamanda Ngozi Adichie's novel about the struggle to establish an independent republic in the country.
Chiwetel admitted it was not easy to film in the country - with many of the cast and crew struck down by typhoid and malaria - but felt it really added to the atmosphere of the film.
He said: "It was an intense experience going out to Nigeria. I was thrilled about it, because I felt that it would make the film, and it would tie in to the look of the film. And I think being there gives it that authentic quality.
"It was incredibly difficult to shoot in Nigeria in the end. There hadn't been a film of this scale In Nigeria before, so there was not that much infrastructure to support the filming, which just proved kind of complex.
"Where we were shooting, the access to getting to places was tricky. We would use these river boats - which I have to say is a beautiful way to go to work, but it's not necessarily the most time efficient way. And then we'd walk through these tiny villages to where we were shooting.
"And we had to be quite wary about getting ill, so it was an intense experience but it added to the whole film."
And the Dancing On The Edge star revealed he did not succumb to sickness because he was on such a tight work schedule.
Chiwetel said: "I was operating in a slightly different place because I knew that I had to finish and got to Louisiana and start shooting 12 Years A Slave, so I was like, 'There's no possibility of getting ill!'."
The film, which premiered at the Toronto International Film Festival, is now looking for a UK distributor.