Arsenal F.C.:

As one of the most successful teams in the country, Arsenal have often featured when football is depicted in the arts in Britain. They formed the backdrop to one of the earliest football-related films, The Arsenal Stadium Mystery (1939). The film centres on a friendly match between Arsenal and an amateur side, one of whose players is poisoned while playing. Many Arsenal players appeared as themselves and manager George Allison was given a speaking part. More recently, the book Fever Pitch by Nick Hornby was an autobiographical account of Hornby's life and relationship with football and Arsenal in particular. Published in 1992, it formed part of the revival and rehabilitation of football in British society during the 1990s. The book was twice adapted for the cinema – the 1997 British film focuses on Arsenal's 1988–89 title win, and a 2005 American version features a fan of baseball's Boston Red Sox.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What was the name of the 2005 movie about the Boston Red Sox?
unanswerable