Question: What year did the film Peter Allen's former spouse won an Academy Award for come out?
Related documents: [0]  [DOC] Liza May Minnelli ( ; born March 12, 1946) is an American actress and singer. Primarily known for her Academy Award-winning role as Sally Bowles in the 1972 musical film "Cabaret" directed by Bob Fosse, she is noted for her energetic stage presence and her powerful contralto singing voice. [END] 
[1]  [DOC] The Allen Brothers were an Australian cabaret act of Peter Allen and a singer guitarist Chris Bell. Allen was then Peter Woolnough, when at the age of fifteen he met Chris Bell, part of a singing duo, "The Two Shades". When the other member of "The Two Shades" departed it was Bell's father who picked the name "Allen Brothers" for Chris and Peter. They also sang with "The Barry Sisters", an Australian backing group unrelated to the American Barry Sisters. The duo broke up at the same time as Allen's marriage to Liza Minnelli and Chris Bell had no further music career. [END] 
Answer: 
1972
1972