<P> While dealing with Karlsson's adventures as a centenarian, the novel also provides flashbacks to increasingly fantastic episodes from his long life . As it proceeds, we learn that Karlsson had helped to make the atom bomb, became good friends with Harry S. Truman and General Franco, knew Stalin, Kim Jong - il, Mao Tse - tung, and Soong Mei - ling, hung out with Albert Einstein's less intelligent brother, foiled an assassination plot against Winston Churchill, and was a participant behind the scenes in many of the key events of the twentieth century . </P> <P> The Hundred - Year - Old Man Who Climbed Out the Window and Disappeared was released as hardback and audiobook in 2009, and as paperback in 2010 . It became the best selling book in Sweden in 2010 and by July 2012 had sold three million copies worldwide . The audiobook, read by the actor Björn Granath, won the Iris Ljudbokspris award in 2010 . The book was published in the United Kingdom by Hesperus Press on 12 July 2012 and in the United States by Hyperion Books on 11 September 2012 . </P> <P> In 2013 it was adapted into a film of the same name . </P> <P> On August 23, 2017, it was announced that CBS Films will collaborate with Gary Sanchez Productions in order to produce an American adaptation of the book . Will Ferrell will star in the film, and it will be produced by Ferrell along with Adam McKay and Jessica Elbaum . The screenplay will be written by Jason George . </P>

The 100 year old man who climbed out of the window and dissapeared