Writer/Director Camille Griffin's three sons Roman Griffin Davis, Gilby Griffin Davis and Hardy Griffin Davis play the children of Nell (Keira Knightley) and Simon (Matthew Goode).
Keira Knightley said the film was finished shooting just before the first COVID-19 based lockdown in the UK. Reshoots were picked up in September 2020 to complete the film.
Keira Knightley starred in the Pirates of the Caribbean series with Johnny Depp. In this movie, she plays opposite of his daughter Lily-Rose Depp.