Here’s a cool video from Thomas H. Smith that offers a split-screen comparison for the 1940 Mickey Mouse animated short Mr. Mouse Takes a Trip. The video features voice actors Walt Disney, Billy Bletcher, and Elvia Allman performing their lines alongside the scenes featuring the animated characters. I’ve synced up the filmed recording session, with the final short for this side by side comparison, as well as footage of Disney sound effects head, Jimmy MacDonald, and his team making some of the sound effects featured in a cartoon like this. Enjoy!