When Elizabeth Olsen‘s Wanda Maximoff first appeared in Avengers: Age of Ultron, the character had a thick Eastern European accent thanks to being a native of the fictional country of Sokovia. By her next appearance in Captain America: Civil War, Wanda’s accent was noticeably toned down, and it was virtually gone in Avengers: Infinity War. According to the Russo Brothers, Wanda learned how to ditch her accent while Black Widow trained her to be a spy, which came in handy when the two were on the run following the events of Civil War.