Question: What Shane Acker directed film stars the voice of Elijah Wood and was based on a short film of the same name?
Context: The Oxford Murders is a 2008 British-Spanish drama film directed by Álex de la Iglesia.  This thriller film is adapted from the novel of the same name by Argentine mathematician and writer Guillermo Martínez.  The film stars Elijah Wood, John Hurt, Spanish actress Leonor Watling and Julie Cox. The Witness is a short film (19 minutes) directed by Chris Gerolmo, starring Gary Sinise and Elijah Wood. Cooties is a 2014 American independent horror comedy film directed by Cary Murnion and Jonathan Milott, written by Ian Brennan and Leigh Whannell.  The film stars Elijah Wood, Alison Pill, Rainn Wilson, Jack McBrayer and Jorge Garcia. 9 is a 2009 American computer-animated science fiction film directed by Shane Acker, written by Pamela Pettler, and produced by Jim Lemley, Dana Ginsburg, Tim Burton, and Timur Bekmambetov.  The film stars the voice talents of Elijah Wood, John C. Reilly, Jennifer Connelly, Christopher Plummer, Crispin Glover, Martin Landau, and Fred Tatasciore. The Trust is a 2016 American crime film directed by Alex Brewer and Ben Brewer and written by Ben Brewer and Adam Hirsch.  The film stars Nicolas Cage, Elijah Wood, Sky Ferreira, Jerry Lewis, Kevin Weisman and Steven Williams.  The film was released on DirecTV on April 14, 2016, before being released on VOD and in theaters on May 13, 2016, by Saban Films.  Although "Max Rose" was released after "The Trust", this film marks the last role that Jerry Lewis filmed before his death in 2017. Tome of the Unknown, the full title of which is Tome of the Unknown: Harvest Melody, is a 2013 animated short film created by Patrick McHale.  In the film, Wirt (Elijah Wood), his brother Gregory (Collin Dean), and Beatrice, a bluebird, head to the big city in search of an arcane book of all known things, meeting a vegetable man along the way. Set Fire to the Stars is a 2014 British semi-biographical drama film directed by Andy Goddard in his directorial debut.  Co-written by Goddard and Celyn Jones, the film stars Elijah Wood as poet John M. Brinnin and Jones as Dylan Thomas with supporting roles by Kelly Reilly, Steven Mackintosh, Shirley Henderson, and Kevin Eldon.  The film was released in the United Kingdom on 7 November 2014. Over the Garden Wall is an American animated television miniseries created by Patrick McHale for Cartoon Network.  The series centers on two half-brothers who travel across a strange forest in order to find their way home, encountering odd and wonderful things on their journey.  The show is based on McHale's animated short film "Tome of the Unknown", which was produced as part of Cartoon Network Studios' shorts development program.  The show features Elijah Wood and Collin Dean as the protagonists Wirt and Greg, and Melanie Lynskey as a bluebird named Beatrice.  "Over the Garden Wall" was broadcast throughout the week of November 3, 2014 to November 7, 2014. Shane Richard Acker (born 1971 in Wheaton, Illinois) is an American animator, film director, screenwriter and animation teacher known for directing "9", which is based on his 2005 Academy Award-nominated short film, of the same title.  He is a graduate of the University of California, Los Angeles. 9 is a 2005 computer animated short film created by Shane Acker as a student project at the UCLA Animation Workshop.  Tim Burton saw the film and was so impressed by its artistic vision that he went on to produce a feature-length adaptation also titled "9", directed by Acker and distributed by Focus Features.  The film was presented at the Indianapolis International Film Festival.  It was nominated for an Academy Award for best animated short film, but lost to "", although it did win a Student Academy Award for Best Animation.
Answer: 9