The third and final Movie on Main Street event is being held tonight in Washington. Main Street Washington is showing The Wizard of Oz, which won two Oscars in 1940, in Central Park beginning at 8:30 p.m. People are encouraged to bring a blanket or lawn chair, enjoy some free popcorn and watch the movie on the big screen on the grand stand. Earlier this summer Back to the Future and ET – The Extraterrestrial were shown. Movies on Main Street began in Washington last summer.