Andrew Garfield stayed in character in between takes. Claire Foy would even scratch his itches.
Three wheelchairs were made by Teddy Hall, he named them the "Cavendish" wheelchair. Teddy Hall built the original chairs with his own money. He had a considerable amount of money because his grandfather discovered the largest lump of gold to be found at the time in Australia.
Andy Serkis has stated that this movie was a labor of love in that the story depicts the real-life odyssey of Robin and Diana Cavendish, the parents of his friend and business partner, Jonathan Cavendish.
The real Diana Cavendish (who was played by Claire Foy in this movie), was present during much of the filming. She was eighty-three at the time and travelled to all of the filming locations with the production.
Jonathan Cavendish, Robin's son, is a movie producer, and is one of the producers on this movie.
In the DVD commentary Jonathan Cavendish states that the song "True Love" from High Society (1956), which is played during a repeated scene of Robin and Diana kissing in front of an African sunset was a favorite of his parents in real-life.
At the end of this movie there are some short sequences of Super 8 footage of the real Cavendish family, including Robin and Diana on their wedding day, and a family outing to a beach with Robin in his wheelchair.
Interior and exterior scenes were shot at Hatfield House in Hertfordshire, England.
Dame Diana Rigg, Dean-Charles Chapman, and Roger Ashton-Griffiths appeared on Game of Thrones (2011).
Andrew Garfield, Dame Diana Rigg, Miranda Raison, Roger Ashton-Griffiths, and Hugh Bonneville appeared on Doctor Who (2005).