Who wrote the 1877 novel which Joe Wright adopted into a 2012 film?
Joe Wright: Joseph "Joe" Wright (born 25 August 1972) is an English film director. Joe Wright:  His motion pictures include the romance film "Pride & Prejudice" (2005), the romantic war drama "Atonement" (2007), the action thriller "Hanna" (2011), his adaptation of "Anna Karenina" (2012), Peter Pan origin story "Pan" (2015), and political drama "Darkest Hour" (2017). Anna Karenina (2012 film): Anna Karenina is a 2012 British historical romance film directed by Joe Wright. Anna Karenina (2012 film):  Adapted by Tom Stoppard from Leo Tolstoy's 1877 novel of the same name, the film depicts the tragedy of Russian aristocrat and socialite Anna Karenina, wife of senior statesman Alexei Karenin, and her affair with the affluent officer Count Vronsky which leads to her ultimate demise.
Leo Tolstoy