Before people cheer too much, surprisingly works can retroactively be snatched back from the public domain and go back into
copyrighted state.
The prime example is the movie Metropolis. It became public domain in 1953 but copyright was restored in 1996 only to re-enter the public domain a year ago today.
The prime example is the movie Metropolis. It became public domain in 1953 but copyright was restored in 1996 only to re-enter the public domain a year ago today.