Release Info
Release Dates
| Canada | 30 January 2009 | |
| USA | 30 January 2009 | |
| Australia | 26 March 2009 | |
| New Zealand | 26 March 2009 | |
| Taiwan | 27 March 2009 | |
| South Korea | 9 April 2009 | |
| Belgium | 15 April 2009 | |
| Netherlands | 16 April 2009 | |
| Poland | 17 April 2009 | |
| Sweden | 17 April 2009 | |
| Kuwait | 23 April 2009 | |
| Malaysia | 23 April 2009 | |
| Ireland | 24 April 2009 | |
| Norway | 24 April 2009 | |
| UK | 24 April 2009 | |
| USA | 28 April 2009 | (DVD premiere) |
| Egypt | 29 April 2009 | |
| Kazakhstan | 30 April 2009 | |
| Lebanon | 30 April 2009 | |
| Russia | 30 April 2009 | |
| Singapore | 14 May 2009 | |
| Denmark | 22 May 2009 | |
| Lithuania | 22 May 2009 | |
| Germany | 28 May 2009 | |
| Brazil | 29 May 2009 | |
| Italy | 29 May 2009 | |
| South Africa | 29 May 2009 | |
| Spain | 29 May 2009 | |
| Turkey | 29 May 2009 | |
| France | 10 June 2009 | |
| Latvia | 19 June 2009 | |
| Kazakhstan | 8 July 2009 | (DVD premiere) |
| Chile | 23 July 2009 | |
| Mexico | 24 July 2009 | |
| Panama | 24 July 2009 | |
| Portugal | 30 July 2009 | |
| Colombia | 4 September 2009 | |
| Iceland | 24 September 2009 | (DVD premiere) |
| Peru | 24 September 2009 | |
| Finland | 30 September 2009 | (DVD premiere) |
| Argentina | 21 October 2009 | (DVD premiere) |
| Hungary | 30 October 2009 | (DVD premiere) |
| Japan | 8 January 2010 | (DVD premiere) |
| Peru | 30 September 2010 | (re-release) |
Also Known As (AKA)
| La maldición de las hermanas | Mexico, Peru, Venezuela |
| Les intrus | Canada (French title), France |
| Presencias extrañas | Spain, Peru (alternative title) |
| A Tale of Two Sisters | USA (working title) |
| Apparition | USA (working title) |
| Davetsiz | Turkey (Turkish title) |
| Der Fluch der 2 Schwestern | Germany (imdb display title) |
| Der Fluch der zwei Schwestern | Germany |
| Hívatlan vendég | Hungary |
| I aproskliti | Greece (DVD title) |
| Nekviesti sveciai | Lithuania (imdb display title) |
| Nepozvana | Serbia (imdb display title) |
| Nepozvani | Croatia (imdb display title) |
| Nieproszeni goscie | Poland |
| O Mistério das Duas Irmãs | Brazil |
| Os Indesejados | Portugal |
| Незваные | Russia |
