To Olivia is a 2021 British drama film directed by John Hay and starring Hugh Bonneville as Roald Dahl and Keeley Hawes as Patricia Neal. It is based on Stephen Michael Shearer's biography about Neal titled An Unquiet Life. The film features Geoffrey Palmer in his final film appearance.

Hugh Richard Bonniwell Williams, known professionally as Hugh Bonneville, is an English actor. He is best known for portraying Robert Crawley, Earl of Grantham, in the ITV historical drama series Downton Abbey from 2010 to 2015. His performance on the show earned him a nomination at the Golden Globes and two consecutive Primetime Emmy Award nominations, as well as three Screen Actors Guild Awards. He reprised his role in the feature films, Downton Abbey (2019), and Downton Abbey: A New Era (2022). He also appeared in the films Notting Hill (1999), Iris (2001), The Monuments Men (2014), and the Paddington films (2014–present).