It’s important to distinguish here that Disney’s (and other) adaptations stay under copyright, as do other books by the authors. Any adaptations, remixes, or extensions of these stories must be based on the original 1926 works. Also, Winnie-the-Pooh’s pal Tigger first appeared in a book in 1928, so will remain copyrighted for another two years.
Another important addition this year is a library of an estimated 400,000 sound recordings, all released prior to 1923. Due to quirks in how the law has developed, this is the first major batch of recordings to enter the public domain in one go. If you’re looking to soundtrack your film, you can start by exploring this trove of old blues, jazz, classical music, comedy skits, and more (listen to highlights here: www.archeophone.com/arsc-top-ten-nominees/#smith).