The Internet Archive has multiple events in January for Public Domain Day, including a contest for film transformations of public domain works.

Those works themselves often involved transformation. Four songs that joined the public domain in 2024 were written for the stage musical Animal Crackers, which went public domain in 2025. The film adaptation, joining the public domain in 13 days, drops all four, but adds Groucho Marx’s signature song “Hello, I Must Be Going”. #PublicDomainDayCountdown