Release dates for
What Ever Happened to Baby Jane? (1962) More at IMDbPro »

Country	Date
USA	26 October 1962	(New York City, New York) (premiere)
USA	31 October 1962
France	May 1963	(Cannes Film Festival)
France	17 May 1963
Denmark	29 May 1963
Japan	30 June 1963
West Germany	22 July 1963
Finland	6 September 1963
Sweden	6 September 1963
Spain	4 December 1963
Turkey	January 1966
France	November 1994	(Festival International du Film d'Amiens)
Ireland	8 October 2004	(re-release)
UK	8 October 2004	(re-release)
Italy	13 November 2006	(Turin Film Festival)
UK	5 April 2008	(London Lesbian and Gay Film Festival)
France	15 April 2009	(re-release)
France	7 September 2009	(Deauville Film Festival)

¿Qué pasó con Baby Jane?	Argentina / Mexico (imdb display title) / Venezuela
Qu'est-il arrivé à Baby Jane?	Belgium (French title) / France
Vad hände med Baby Jane?	Finland (imdb display title) (Swedish title) / Sweden
¿Qué fue de Baby Jane?	Spain
Che fine ha fatto Baby Jane?	Italy
Co sie zdarzylo Baby Jane?	Poland
Hvad blev der egentlig af Baby Jane?	Denmark
Küçük bebege ne oldu?	Turkey (Turkish title)
Mi történt Baby Jane-nel?	Hungary
Mitä tapahtui Baby Janelle	Finland (TV title)
Mitä tapahtui Baby Janelle?	Finland (TV title)
Mitä tapahtuikaan Baby Janelle?	Finland
O Que Aconteceu com Baby Jane?	Brazil (imdb display title)
O Que Terá Acontecido a Baby Jane?	Brazil (DVD title)
Que Teria Acontecido a Baby Jane?	Portugal (imdb display title)
Ti apegine i Baby Jane?	Greece (transliterated ISO-LATIN-1 title)
Was geschah wirklich mit Baby Jane?	West Germany
Wat is er toch van Baby Jane terecht gekomen?	Belgium (Flemish title)