Question: Who directed the film that the video game Alex Rider: Stormbreaker is based off of?
Context: Alex Rider is a series of spy novels by British author Anthony Horowitz about a 14–15-year-old spy named Alex Rider.  The series is aimed primarily at young adults.  The series comprises eleven novels, as well as five graphic novels, three short stories and a supplementary book.  The first novel, "Stormbreaker", was released in the United Kingdom in 2000 and was adapted into a motion picture in 2006 starring Alex Pettyfer.  A was released in 2006, based on the film which received negative reviews.  The novels are published by Walker Books in the United Kingdom.  They were first published by Puffin in the United States, but have been published more recently by Philomel Books, also an imprint of Penguin Books.  The audio books are read by Simon Prebble.  The eleventh novel, "Never Say Die", was released in June 2017.  Horowitz has had great success with the series. Knight Rider Special (ナイトライダースペシャル , Naito Raidā Supesharu ) is a video game for the PC-Engine based on the 1980s television series "Knight Rider".  It was produced by and published by Pack-In Video Co. Ltd, who also developed the NES version.  on December 16, 1994 in Japan only.  The game features sound bites by KITT's voice actor, Akio Nojima, straight from the show's Japanese dub. "Hey Kid" is the second official single from Matt Willis, released on August 14, 2006.  It is taken from Willis's debut solo album "Don't Let It Go to Waste".  "Hey Kid" also appears in the 2006 teen film "John Tucker Must Die" and the action packed teen film "Alex Rider:Stormbreaker", and therefore will be on both the films soundtracks. This is a list of protagonists and antagonists from British author Anthony Horowitz's "Alex Rider" series.  This includes characters from the novels, the film, the graphic novels, and the short stories. Alexander Richard "Alex" Pettyfer (born 10 April 1990) is an English actor and model.  He appeared in school plays and on television before being cast as Alex Rider, the main character in the 2006 film version of "Stormbreaker"; Pettyfer was nominated for a Young Artist Award and an Empire Award for his role.  He has been seen as a model in several advertising campaigns for Burberry.  His next two starring roles were in the 2011 films "I Am Number Four", a science fiction action adventure, and "Beastly", a modernised retelling of "Beauty and the Beast".  Pettyfer also starred in the 2012 film "Magic Mike", and played a supporting role in the 2013's film "The Butler".  He appeared in the 2014 romantic drama film "Endless Love." Alex Rider is a title character and the protagonist of the popular "Alex Rider" novel series by British author Anthony Horowitz.  He has also been featured in three short stories written by Horowitz based in the same canon as the series; "", "" and "". Saber Rider and the Star Sheriffs - The Game is an upcoming 2D 16-bit-style run and gun-style shoot-'em-up video game.  It is being developed by a German development group called "Team Saber Rider".  The game is based on the 1987 television series of the same name, which is an American adaptation of a 1984 anime that was reworked and originally syndicated by World Events Productions (WEP).  The game is also licensed by Studio Pierrot, the original owners of the series. Stormbreaker is a young adult action-adventure book written by British author Anthony Horowitz, and is the first novel in the "Alex Rider" series.  The book was released in the United Kingdom on 4 September 2000, and in United States release on 21 May 2001, where it became a New York Times Bestseller.  Since its release, the book has sold more than nine million copies worldwide, been listed on the BBC's The Big Read, and in 2005 received a California Young Reader Medal. Alex Rider: Stormbreaker is a video game based on the 2006 film "Stormbreaker", which in turn was an adaptation of the original novel.  It was released on 7 July 2006 in UK, and 25 September 2006 in the U.S.A.  It is only available for the Nintendo DS and the Game Boy Advance. Stormbreaker (titled Alex Rider: Operation Stormbreaker in the United States) is a 2006 action spy film directed by Geoffrey Sax.  The screenplay by Anthony Horowitz is based on his novel of the same name, the first novel in the "Alex Rider" series.  The film stars Alex Pettyfer as Alex Rider, and also stars Mickey Rourke, Bill Nighy, Sophie Okenedo, Alicia Silverstone, Sarah Bolger, Stephen Fry and Ewan McGregor.  "Stormbreaker" was an international co-production between companies and financiers from the United Kingdom, the United States, and Germany.
Answer: Geoffrey Sax