| Country | Date | |
|---|---|---|
| USA | 7 March 2008 | (limited) |
| Hong Kong | 27 March 2008 | |
| Greece | 17 April 2008 | (limited) |
| Portugal | 17 April 2008 | |
| Israel | 1 May 2008 | |
| Australia | 8 May 2008 | |
| UK | 25 June 2008 | (Edinburgh Film Festival) |
| Finland | 25 July 2008 | |
| Ireland | 15 August 2008 | |
| UK | 15 August 2008 | |
| India | 22 August 2008 | |
| Hungary | 4 September 2008 | |
| Netherlands | 9 September 2008 | (DVD premiere) |
| Norway | 19 September 2008 | |
| South Korea | 2 October 2008 | |
| Denmark | 31 October 2008 | |
| Sweden | 31 October 2008 | |
| Spain | 5 December 2008 | |
| Brazil | 12 December 2008 | (DVD premiere) |
| Germany | 16 February 2009 | (DVD premiere) |
| France | 25 February 2009 | |
| Philippines | 22 April 2009 | (limited) |
| Argentina | 9 September 2009 | (DVD premiere) |
| A Vida num Só Dia | Brazil (imdb display title) / Portugal (imdb display title) |
| Miss Pettigrew | France / Italy (imdb display title) |
| Un gran día para ellas | Argentina (DVD title) / Spain |
| Öyle bir gündü ki | Turkey (Turkish title) |
| Forvandling fryder | Norway (imdb display title) |
| I mera pou arhisa na zo | Greece (transliterated ISO-LATIN-1 title) |
| Miss Pettigrew - Päivä täynnä elämää | Finland |
| Miss Pettigrew et le jour de sa vie | Canada (French title) |
| Miss Pettigrew nagy napja | Hungary (imdb display title) |
| Miss Pettigrews fantastiske forvandling | Denmark |
| Miss Pettigrews großer Tag | Germany (DVD title) |
| Niezwykly dzien panny Pettigrew | Poland (imdb display title) |
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