Shenton qualified as a sign-language interpreter at the age of 12 after learning the language when her father went deaf.
One of the issues that was in rather less sharp focus was disability in Hollywood films.
The film tells the story of Libby, played by six-year-old Maisie Sly, who struggles to communicate until a social worker, played by Rachel Shenton, teaches her sign language.
She had never acted before but Shenton said Sly had “taken it all in her stride.