You must unlearn what you have learned: As a pair of rare photos posted by Will McCrabb on Twitter show, George Lucas originally intended to have a monkey play Yoda in "Star Wars: Episode V - The Empire Strikes Back." The animal was even taught to hold Yoda's signature cane.
"Star Wars" fans are likely familiar with this bit of unbelievable trivia: The story of Monkey Yoda was revealed by author J.W. Rinzler in his 2010 book, "The Making Of 'Star Wars: The Empire Strikes Back.'" As io9.com reported back in 2010 when the news first broke, the simian plans for Yoda were scrapped when someone on the production noted that "the monkey's just going to pull off the mask over and over again." The character was eventually turned into a puppet that was operated and voiced by Frank Oz. Check out the photos, as well as a clip of Oz performing Yoda, below.