Andrew Garfield and Claire Foy have spoken more of the experience of working on their new film Breathe.
The superstar actors play the roles of Robin Cavendish and Diana Blacker in the film, which tells the story of how the former becomes an advocate for the disabled after contracting polio.
Andrew said: "The dynamic was the most important thing, the relationship to make live and make real.
"It was a lovely kind of, lucky situation we were both cast and enjoyed each other.
"We didn't have to figure things out in the moment, we figured them out as the characters, which is what we needed to do because it was a very short shoot."
Claire said she met her character, the real Diana, herself, and received advice on what not to do.
She told Johnny: "I did ask her what the worst possible thing to do was.
"She asked me not to make her a saint, don't oversentimentalise it, and I tried not to do it.
"There are lots of opportunities in this film to enjoy feeling all sorts of things.
"I was a mess off screen, esstenially, and then tried to hold it together - which in reality, I suppose, is how Diana coped with it when she wasn't around Robin."