Vivian Maier's remarkable photos
Publicly, she was a children's nanny. Privately, she was an avid photographer who took over 100,000 images. Vivian Maier's decades of work remained hidden - until her negatives, prints and 8mm films were sold at a thrift auction in Chicago in 2007.
Now, a documentary film - Finding Vivian Maier - looks at her intriguing and remarkable legacy.
One of its directors, Charlie Siskel, spoke to BBC Radio 4's Today programme about the woman - the street spy - who captured fascinating moments of daily life.
Finding Vivian Maier is released in the UK on 18 July 2014.
All images ©Vivian Maier/Maloof Collection.
Audio interview by Tom Bateman. Music by KPM Music. Photofilm by Paul Kerley.
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03 Jul 2014