I saw that a long time ago. I must see it again. In was produced in France. In some ways silent movies were a superior art form to the talkies, one of which was the ease that they could be translated into different languages.
Probably the most famous silent movie was Erich von Stroheim's masterpiece "Greed", 1924. Over 85 hours of footage was shot, including two months in Death Valley, CA in the height of summer (been there, done that), where the final scene takes place. It was trimmed down to eight hours for its release, but only 2 1/2 hours survive. Film buffs are always hoping that the lost footage might resurface someplace.
Films like Greed and Sunrise are not only great works of art, but the on location shots show glimpses of a lost America. For instance both of them show the great public transportation system that we had back then, the interurban cars, trollies, and railroads, all deliberately dismantled. And of course they show our own white nation...before the Vampyre seized total control of our mass media.