Question: Which film directed by Brian Percival is based on a book by Markus Zusak?

Context paragraphs:
The Book Thief (film): The Book Thief is a 2013 American-German war drama film directed by Brian Percival and starring Geoffrey Rush, Emily Watson, and Sophie Nélisse.  The film is based on the 2005 novel "The Book Thief" by Markus Zusak and adapted by Michael Petroni.  The film is about a young girl living with her adoptive German family during the Nazi era.  Taught to read by her kind-hearted foster father, the girl begins "borrowing" books and sharing them with the Jewish refugee being sheltered by her foster parents in their home.  The film features a musical score by Oscar-winning composer John Williams.

The Sold Grandfather (1942 film): The Sold Grandfather (German: Der verkaufte Großvater) is a 1942 German comedy film directed by  Joe Stöckel and starring  Josef Eichheim, Oskar Sima and Winnie Markus.  It was based on a play which was later adapted into a 1962 film of the same name.

Brian Percival: Brian Percival is a British film director, known for his work on the British television series "Downton Abbey" and "North & South", as well as the feature film "The Book Thief".

The Common Cause (film): The Common Cause is a lost 1919 American silent comedy film directed and produced by J. Stuart Blackton and distributed by Vitagraph Company of America.  It is based on a play, "Getting Together", by Ian Hay, J. Hartley Manners, and Percival Knight.

Girl Stroke Boy: Girl Stroke Boy is a 1971 British comedy-drama film directed by Bob Kellett and starring Joan Greenwood, Michael Hordern and Clive Francis.  It was based on the play "Girl Friend" by David Percival.

The Homicide Squad: The Homicide Squad is a 1931 American Pre-Code crime film directed by George Melford and Edward L. Cahn and written by John Thomas Neville, Charles Logue and Tom Reed.  It is based on a 1928 Henry La Cossitt short story that originally ran in "Adventure" magazine.  The film stars Leo Carrillo, Noah Beery, Sr., Mary Brian, Russell Gleason, George Brent and Walter Percival.  The film was released on August 1, 1931, by Universal Pictures.

Kidnapped (1995 film): Kidnapped ("A timeless tale of honor, bravery and adventure") is a 1995 TV adventure drama film directed by Ivan Passer and starring Armand Assante as Highlander Alan Breck and Brian McCardie as Lowlander David Balfour.  Among the supporting actors are Michael Kitchen and Brian Blessed.  The film was based on the book titled "Kidnapped" by author Robert Louis Stevenson.  Christopher Reeve had originally been cast as Breck prior to his spinal cord injury in a horse race which left him a quadriplegic on May 27, 1995.

The Present (2014 film): The Present is a 2014 animated short film directed and co-written by Jacob Frey and co-written with Markus Kranzler.  It is based on "Perfeição", a comic strip by Fabio Coala.  The short film tells the story of a teenage boy who gets a three-legged puppy from his mom, eventually warming up to it.

Sophie Nélisse: Sophie Nélisse (born March 27, 2000) is a Canadian teen actress.  She is known for her Genie Award–winning performance in "Monsieur Lazhar", and as Liesel Meminger in the film adaptation of the best-selling novel "The Book Thief" written by Markus Zusak.

About a Girl (2001 film): About a Girl is a nine-minute short film directed by Brian Percival.  In 2001 it won the BAFTA Award for Best Short Film.  It also won an award at the Edinburgh International Film Festival for Best British Short, the TCM Classic Shorts Award prize at the London Film Festival, and the Jury Prize at the Raindance Film Festival.  The script was written by Julie Rutterford and the film was produced by Janey de Nordwall.  The leading role was played by Ashley Thewlis.

Supporting paragraphs: Brian Percival The Book Thief (film)
Answer: The Book Thief