James Hilton (novelist) picked "Lost Horizon" as its first title in 1939. For that reason, the novel is frequently called the book that began the "paperback revolution." Hilton is said to have been inspired to write "Lost Horizon", and to invent "Shangri-La" by reading the "National Geographic Magazine" articles of Joseph Rock, an Austrian-American botanist and ethnologist exploring the southwestern Chinese provinces and Tibetan borderlands. Still living in Britain at the time, Hilton was perhaps influenced by the Tibetan travel articles of early travellers in Tibet whose writings were found in the British Library. Christian Zeeman, the Danish father of the mathematician Christopher
Lost Horizon (1973 film) and successful partnership was effectively terminated by their experiences working on the score. Bacharach felt that the producers were sanctioning weakened versions of his music, and he attempted to exert greater influence over what was being developed. However this led to him being banned from the editing suite. His animosity towards David, who he felt was inadequately supportive, destroyed their professional relationship. Bacharach's own vision of the music was later realised in his album "Living Together" (1974). "Lost Horizon" was such a poor performer at the box office that the film subsequently gained the nickname "Lost Investment". Bette Midler alluded