Question: What novel spawned a film and a film based on the search for the right actress for the film?

Context articles: Od ani holeh
Mantrap (novel)
The Invisible Man (film)
Scarlett O'Hara
Crows Zero
The Search for King Solomon's Mines
Christina Aguilera
The Search (2009 film)
Kiss the Boys Goodbye
Hercules (1958 film)

Od ani holeh (Hebrew: עוד אני הולך) or Still Walking is a book and a film based on the book.
 It is from film director Yaky Yosha's first novel, published in Hebrew in March 2008.
 The novel was followed by a film based on the story.
 Production began in the summer of 2008 in Tel Aviv.
 According to Yosha: ""Still Walking"" is Shalom's older brother, and show the same youngsters pondering over the social and political state they live in, when they're a generation older.
 The film, following the book, will track them down when all is without hope."
Mantrap is a 1926 novel by Sinclair Lewis.
 One of Lewis' two unsuccessful novels of the 1920s, the other being "The Man Who Knew Coolidge".
 "Mantrap" is the story of New York lawyer Ralph Prescott's journey into the wilds of Saskatchewan, and of his adventures there.
 The novel spawned two separate film adaptations, "Mantrap" (1926), and "Untamed" (1940).
The Invisible Man is an American 1933 Pre-Code science fiction horror film based on H. G. Wells' science fiction novel "The Invisible Man", published in 1897, as adapted by R.C. Sherriff, Philip Wylie and Preston Sturges, whose work was considered unsatisfactory and who was taken off the project.
 Produced by Universal Studios, the film was directed by James Whale and stars Claude Rains, in his first American screen appearance, and Gloria Stuart.
 It spawned a number of sequels, plus many spinoffs using the idea of an "invisible man" that were largely unrelated to Wells' original story.
Katie Scarlett O'Hara is a fictional character and the main protagonist in Margaret Mitchell's 1936 novel "Gone with the Wind" and in the later film of the same name.
 She also is the main character in the 1970 musical "Scarlett" and the 1991 book "Scarlett", a sequel to "Gone with the Wind" that was written by Alexandra Ripley and adapted for a television mini-series in 1994.
 During early drafts of the original novel, Mitchell referred to her heroine as "Pansy", and did not decide on the name "Scarlett" until just before the novel went to print.
Crows Zero (クローズZERO , Kurōzu Zero ) , also known as Crows: Episode 0, is a 2007 Japanese action film based on the manga "Crows" by Hiroshi Takahashi.
 The film was directed by Takashi Miike with a screenplay by Shogo Muto, and stars Shun Oguri, Kyōsuke Yabe, Meisa Kuroki, and Takayuki Yamada.
 The plot serves as a prequel to the manga, and focuses on the power struggle between gangs of students at Suzuran All-Boys High School.
 The film was released in Japan on October 27, 2007.
 It has spawned two sequels, "Crows Zero 2" and "Crows Explode", as well as a manga adaptation released November 13, 2008.
The Search for King Solomon's Mines is a documentary film based on the trail followed in Tahir Shah's 2002 book "In Search of King Solomon's Mines".
 After the initial journeys through Ethiopia that resulted in Shah's book, returned to the country with a film crew commissioned by National Geographical TV and Britain's Channel 4, to bring the search for the fabled mines to television.
 As a travel writer, having a film crew accompany him for the first time was a new experience for Shah.
 His work in researching books usually involves a low key method of gaining information and making contacts.
Christina María Aguilera (born December 18, 1980) is an American singer, songwriter, actress and television personality.
 Born in Staten Island, New York and raised in Rochester and Wexford, Pennsylvania, she appeared on the television series "Star Search" and "The Mickey Mouse Club" in her early years.
 After recording "Reflection", the theme for Disney's 1998 film "Mulan", Aguilera signed with RCA Records.
 She rose to prominence with her 1999 self-titled debut album that spawned the "Billboard" Hot 100 number-one singles "Genie in a Bottle", "What a Girl Wants", and "Come On Over Baby (All I Want Is You)".
 The following year, Aguilera released two studio albums; the Spanish-language album "Mi Reflejo" and the holiday album "My Kind of Christmas".
The Search or Soul Searching () is a 2009 Tibetan romance film written and directed by Pema Tseden.
 "The Search" is the first-ever film made in Western China's Tibet Autonomous Region to have been shot entirely with a Tibetan crew and in the Tibetan language.
 The film picks up the story of a photographer and a director travels from village to village looking for actors to star in a film based on the Tibetan opera "Drimé Kunden", a legendary account of a prince who selflessly gives away his children and his own eyes to those in need.
 The film premiered at Locarno International Film Festival on August 11, 2009.
 "The Search" won Special Jury Award at the 12th Shanghai International Film Festival and was nominated for Golden Goblet.
Kiss the Boys Goodbye is a 1941 comedy film based on a play by Clare Boothe Luce which was inspired by the search for an actress to play Scarlett O'Hara in the film version of "Gone with the Wind".
Hercules (Italian: "Le fatiche di Ercole" , 'The Labours of Hercules' ) is a 1958 Italian "peplum" film based upon the Hercules and the Quest for the Golden Fleece myths.
 The film stars Steve Reeves as the titular hero and Sylva Koscina as his love interest Princess Iole.
 "Hercules" was directed by Pietro Francisci and produced by Federico Teti.
 The film spawned a sequel, "Hercules Unchained" (Italian: "Ercole e la Regina di Lidia" ), that also starred Reeves and Koscina.