Ian Russell McEwanCBE, FRSA, FRSL (born 21 June 1948) is a Booker Prize-winning English novelist and screenwriter . In 2008, The Times named McEwan among their list of "The 50 greatest British writers since 1945" . His 1997 novel, Enduring Love, about the relationship between a science writer and a stalker, was extremely popular with critics, although it was not shortlisted for the Booker Prize . In 1998, he was awarded the Booker Prize for his novel Amsterdam . His next novel, Atonement, received considerable acclaim; Time Magazine named it the best novel of 2002, and it was shortlisted for the Booker Prize . In 2007, the critically acclaimed movie "Atonement", directed by Joe Wright and starring Keira Knightley and James McAvoy, was released in cinemas worldwide . His next work, Saturday, follows an especially eventful day in the life of a successful neurosurgeon . Saturday won the James Tait Black Memorial Prize for 2005, and his novel On Chesil Beach was shortlisted for the 2007 Booker Prize . McEwan has also written a number of produced screenplays, a stage play, children's fiction, an oratorio and a libretto titled For You with music composed by Michael Berkeley . In 2002, McEwan discovered that he had a brother who had been given up for adoption during World War II; the story became public in 2007 . The brother, a bricklayer named David Sharp, was born six years earlier than McEwan, when his mother was married to a different man . Sharp has the same parents as McEwan but was born from an affair between them that occurred before their marriage . After her first husband was killed in combat, McEwan's mother married her lover, and Ian was born a few years later. The brothers are in regular contact, and McEwan has written a foreword to Sharp's memoir. .