Daniel says it is an added pressure when the person you're playing (Tim Jenkin) is going to see your work on set.

"It's intimidating, but it's also very useful. These were people who sacrificed a lot and were willing to risk a huge amount for what they were fighting for, for their principles.

"You do have a certain duty when you're telling these kinds of stories. It lights a fire in you to give it your all, every day."

The South African accent is a notoriously difficult one to master. With the help of an acting coach Daniel prepared for this aspect of the character.

"I'd go through the script and I get somebody with a proper South African accent to say everything to me.

"And then I write it down phonetically next to the line in a way that will make me repeat those sounds. Repetition and then hoping for the best."

For Daniel, what this movie means for him, and what he hopes viewers take from it is that it's one thing to believe in equality, but begs the question: What are you willing to do?

"What are you willing to sacrifice? We all like to think that we would be on the right side of history if we are placed in a certain time period. But the reality is, you know, very few people are. And Tim is one of the people who was. I think it's a story that, as you say, now is a good time for it."