Center for the Study of the Public Domain, Duke University: “On January 1, 2023, copyrighted works from 1927 will enter the US public domain. They will be free for all to copy, share, and build upon. These include Virginia Woolf’s To The Lighthouse and the final Sherlock Holmes stories by Arthur Conan Doyle, the German science-fiction film Metropolis and Alfred Hitchcock’s first thriller, compositions by Louis Armstrong and Fats Waller, and a novelty song about ice cream. Please note that this site is only about US law; the copyright terms in other countries are different.”