| Country | Date | |
|---|---|---|
| USA | 6 February 2009 | (limited) |
| Iceland | 13 February 2009 | |
| Singapore | 26 March 2009 | |
| Canada | 3 April 2009 | (limited) |
| Greece | 9 April 2009 | |
| Denmark | 7 May 2009 | |
| Australia | 5 June 2009 | (limited) |
| Germany | 30 July 2009 | |
| Hungary | 6 August 2009 | |
| Austria | 25 September 2009 | |
| Portugal | 15 October 2009 | |
| Italy | 21 October 2009 | |
| Japan | 27 March 2010 | (Okinawa International Movie Festival) |
| Japan | 24 April 2010 | (Tokyo) |
| Japan | 12 May 2010 | (DVD premiere) |
| UK | 28 August 2010 | (Film4 FrightFest) |
| UK | 4 October 2010 | (video premiere) |
| Netherlands | 16 November 2010 | (DVD premiere) |
| France | 2 August 2011 | (DVD premiere) |
| Sweden | 15 August 2011 | (TV premiere) |
| Fanboys | France (imdb display title) / Greece / Japan (English title) |
| Fanboys - Rajongók háborúja | Hungary |
| Fanboys: Razboiul fanilor | Romania (imdb display title) |
| Les fans | Canada (French title) |
| Loucos e Fãs | Portugal |
| Obožavaoci | Serbia |
| Obozavatelji | Croatia |
| Trailers | Box office and business | User reviews |
| Ratings | News articles | Official site |
| External reviews | Main details |