CHIWETEL Ejiofor was well aware of the challenges that could crop up with his latest project. The Boy Who Harnessed The Wind, based on the the bestselling book by William Kamkwamba and Bryan Mealer, is not only his directorial debut, but he also stars in the moving film.
From the reading he did into directing yourself, the 41-year-old Londoner realised he might feel awkward about giving himself another take.
"There's a tendency to try and look after everybody else, but pretend that you're OK with whatever you're doing, or be half OK with it, or not be quite as demanding of people's time and people's patience to make sure that you feel OK within that context," the Bafta-winning actor says.
"That was something I had in the back of my mind, because I thought actually, 'That's not something I've even thought about, that I might put pressure on myself to pretend that I'm all right with everything that I was doing as an actor'. So, I tried not to do that."
The inspiring true story, which premiered at the Sundance film festival in late January, follows 13-year-old William Kamkwamba (played by newcomer Maxwell Simba).
After he's thrown out of the school he loves when his family can no longer afford the fees, William manages to sneak back into the school library. And he finds a way, using the bones of the bicycle belonging to his father Trywell (portrayed by Ejiofor), to build a windmill, which then saves his Malawian village from famine.
Ejiofor, who was born in east London to Nigerian parents and grew up visiting his family in villages much like William's, bought the film rights to The Boy Who Harnessed The Wind after reading the book in 2010. Bringing it to the screen has taken the best part of a decade.
Explaining what drew him to the story, he says: "The cultural history of where the subjects are from and their dynamics in and around this landscape are beautiful, cinematic and fascinating. They're epic."
The star was 19 and attending the London Academy of Music and Dramatic Art when he was cast in his debut film, Amistad, by Steven Spielberg.
His profile has risen higher and higher, thanks to high-profile roles including an Oscar-nominated performance in the 2013 film 12 Years A Slave, in which he starred alongside Irish actor Michael Fassbender.
When it comes to the move behind the camera, he says he was always "interested in directing, but at a distance".
"And also actually with writing as well, there was something kind of recreational about the way that I was approaching writing, which was I'd written a couple of films but I hadn't really pursued an aggressive form of development of those films," he says.
Having only experimented with making short films previously, it felt right to take the plunge into full-length features with The Boy Who Harnessed The Wind. But he didn't exactly pick the easiest story to bring to life.
In William's community, the people speak a mixture of a local language called Chichewa and English. To make the film truly authentic, Ejiofor decided to work Chichewa into the script when it seemed most natural for the characters to speak it.
This made for an intense filming process for him and the rest of the cast, as they had the task of learning a whole new language.
"Sometimes you've just got to go for it," he reasons, when discussing how difficult this element of the role was. "And actually it gets a bit of wind behind you. It's harder to do things by halves, in a way... You're not fully invested, so you get bogged down by the self-doubt and not knowing why you're doing it and what choices you're making."
He continues: "I wanted to have an authentic experience, but that meant shooting in Malawi was going to be really important. And if shooting in Malawi was going to be really important, then it felt like shooting it in a Malawian language was going to be very important.
"Trying to find the right people to play the parts, and people and actors who are going to be engaged with all the complications of Chichewa and doing it in that way, felt a natural part of the process."
Ejiofor has worked with some incredibly successful directors throughout his career – Steve McQueen for 12 Years A Slave, Alfonso Cuaron for Children of Men, Stephen Frears for what was arguably his breakout role in thriller Dirty Pretty Things, and, as mentioned earlier, Spielberg right at the start of his career.
But while they have all been "deeply inspirational", he stresses there must be a balance on set of trying to find your own voice with a film too.
"If you are trying to borrow somebody else, then the film is going to feel like you're trying to borrow somebody else," he says. "It's not going to feel particularly authentic, and it's not going to feel consistent, in a way.
"In the end it is about trying to be honest, and to be honest to yourself and whatever your strengths are but also to what your weaknesses are, and to fess up to them and try and navigate them, because all of it is very raw on screen.
"It's a very transparent medium and it really does expose the director, it exposes the writer, it exposes the actor. It's very brutal as a format. So, you've just got to be as truthful to yourself as you can be."
:: The Boy Who Harnessed The Wind is available on Netflix from today.