Watch John Henry and the Inky-Poo for Free: How to Stream the Movie Online at 123Movies. . In this Puppetoon animated short film (an Academy Award Best Short Subject, Cartoons nominee), legendary American folklore figure John Henry (voice of Rex Ingram) goes to work for the C&O Railroad, which shortly thereafter buys an automatic steel-driving engine, The Inky-Poo. John Henry matches his strength against the engine, saying that any man can beat a machine because a man has a mind. Can he prevail? In 2015 this film, deemed "culturally, historically, or aesthetically significant", was selected for preservation in the United States National Film Registry. Preserved by the Academy Film Archive in partnership with UCLA Film & Television Archive in 2009.