Finding Vivian Maier

Following the Toronto International Film Festival premiere of "Finding Vivian Maier," Killer Films is teaming up with Charlie Siskel and John Maloof to develop their documentary into a narrative feature film. The documentary uncovers Vivian Maier, a nanny who secretly took over 100,000 photographs. The photographs were eventually discovered decades later, hidden in several storage lockers and Maier is now ranked among the 20th century‚Äôs greatest photographers. Siskel and Maloof's documentary shows her strange life and art, revealing never before seen photographs, films, and interviews with dozens who thought they knew her.

READ MORE: John Maloof and Charlie Siskel Talk Researching the Life of the Nanny Street Photographer Vivian Maier

Sundance Selects acquired U.S. rights to the doc before its world premiere at the 2013 Toronto International Film Festival. Read Indiewire's interview with Maloof and Siskel here. And watch the trailer for the doc below: