One Day is the movie based on the novel of the same title by British author, David Nicholls. The day referred to in the title is St. Swithin's Day, July 15th, and the movie shows what is happening in the lives of two people, Dexter Mayhew and Emma Morley, each year on that day as well as referring to significant events of the preceding year. Emma and Dexter are first encountered on the day after their graduation and are followed through twenty years of life: relationships, career highs and lows, personal crises, addictions, weddings, marriages, divorces, extramarital affairs, parenthood, resounding successes and abysmal failures, loss of significant family members, loneliness, cohabitation and physical ageing all feature. Emma is well portrayed by Anne Hathaway; Jim Sturgess is excellent as Dexter; Rafe Spall, Patricia Clarkson and Ken Stott deserve special mentions as Ian, Dexter's mother Alison Mayhew and Dexter's father Steven. Young Eden and Kayla Mendelgrein play Jasmine Mayhew very well. The scenery and atmosphere come across well, and the screenplay is remarkably (and refreshingly) faithful to the book, perhaps because it was also written by David Nicholls. The locations are often sumptuous (Edinburgh, Paris, London) and the extras (deleted scenes, interviews, commentary) are also well worth watching. A very watchable movie of a marvellous novel.