Question: The 2013 documentary "I Know That Voice" featured what famous actor, known for voice roles as Cindy Lou Who and Rocky the Flying Squirrel?
Sentence (from "June Foray"): June Foray (born June Lucille Forer; September 18, 1917 – July 26, 2017) was an American voice actress who was best known as the voice of such animated characters as Rocky the Flying Squirrel, Lucifer from Disney's "Cinderella", Cindy Lou Who, Jokey Smurf, Granny from the Warner Bros. cartoons directed by Friz Freleng, Grammi Gummi from "Disney's Adventures of the Gummi Bears" series, and Magica De Spell, among many others.
Relevant evidence: Yes