Leslie Simmer is Kartemquin's Director of Editing as well as Senior Editor on staff.

For over nineteen years Leslie has worked at Kartemquin in various capacities. She is currently working on the multi-part series America to Me. Her most recent project before that was Raising Bertie, which she edited and co-wrote, and which premiered at Full Frame in 2016. Leslie edited and co-wrote the Emmy Award-winning film, The Homestretch, which world premiered at Hot Docs 2014 and screened on PBS’s Independent Lens in 2015. She edited and co-wrote the Emmy-nominated feature documentary As Goes Janesville, a co-production between Kartemquin and 371 Productions which screened on PBS Independent Lens in October, 2012. Prior to that, she edited with Steve James on the ESPN film No Crossover: The Trial of Allen Iverson. She edited the Emmy-nominated In the Family (for which she received the Best Editing prize at the "Best of the Midwest Awards”). In 2005 Leslie was co-editor with Steve James on The War Tapes. From 2001-2004 she wore dual hats on the seven-part PBS series The New Americans as both Series Story Editor and Post Production Supervisor.

Prior to putting on her editing hat full-time, Leslie worked in various different production and post-production roles on a number of Kartemquin Films, including Stevie, Refrigerator Mothers, 5 Girls, and Vietnam: Long Time Coming. Leslie got her BA in Communication/Theater Arts (Phi Beta Kappa) from Kalamazoo College in Michigan. She did graduate work in film at Columbia College, Chicago, where she began her long and passionate relationship with the Avid. When not in the edit room, she enjoys travel, music, good food and liquor, snorkeling (and beaches in general), and helping animals.