One Day is a 2011 romance drama film directed by Lone Scherfig. It was adapted by David Nicholls from his 2009 novel of the same name. It stars Anne Hathaway and Jim Sturgess. Focus Features released the film theatrically in August 2011.
Dexter Mayhew Jim Sturgess and Emma Morley Anne Hathaway meet onJuly 1988 after their graduation from the University of Edinburgh. They spend the night together but agree to be just friends, and plan to spend the following day together, the 15th, St. Swithuns day. The film chronologically reconnects Dexter, Emma or both of them on that one day over the nextyears after they go their separate ways.One year later in 1989, Dexter helps Emma move into a flat in London where she plans to pursue a career as a writer. However, after little success, she ends up working as a waitress in a Mexican restaurant by 1990, and meets Ian Rafe Spall, an aspiring comedian who is hired soon after. Dexter is travelling the world while drinking and having sex promiscuously with a succession of girlfriends, but they keep in contact via phonecalls and letters. He then visits Emma onJuly 1991 and, to get her out of her rut, suggests they go away for the weekend. They flirt back and forth and its made clear that Emma may have deeper feelings for him, but since she knows that Dexter is not boyfriend material, nothing comes of it and two more years fly by. Dexter is now a wealthy and successful television presenter on a raucous latenight television show, where he meets Sylvie Romola Garai, who later becomes his new girlfriend. ........
Source: Wikipedia