Original sentence: A film, however, is not required to be feature-length, nor is it required to have been theatrically released.The films are selected by the Librarian of Congress, along with input from the Board
Edited sentence: A film is not required to be feature-length, nor is it required to have been theatrically released.Beginning in 1997, members of the public were able to nominate up to 50 films a year for the Board and Librarian to consider.For the first selection in 1989, the public nominated almost 1,000 films for consideration.Members of the National Film Preservation Board then developed individual ballots of possible films for inclusion.Nominate films for the National Film Registry.The ballots were tabulated into a list of 25 films which was then modified by the Librarian of Congress and staff at the Library for the final selection