This is a delightful film even if you cannot understand the language. Wikipedia's plot summary will provide the basic idea for this beautifully photographed film. Erich Kastner, the author of the 1949 novel, introduces the film and narrates. Wikipedia... Plot summary Two nine-year-old girls--rude Lisa Palfy (orig. Luise Palfy) from Vienna, and respectful shy Lottie Horn (orig. Lotte Korner) from Munich--meet on a summer camp in Bohrlaken on Lake Bohren (orig. 'Seebuhl am Buhlsee'). Lisa has curly hair; Lottie wears braids. Apart from that, they look alike. They have never seen each other befor
You can stream "The double Lottie" ["Das Doppelte Lottchen"] [1950] free and legally on OldReel, via the Internet Archive.
Yes — it is in the public domain and can be watched and shared freely.