The American Film Institute named Atticus Finch the greatest movie hero of the 20th century.  Additionally, the AFI ranked the movie second on their 100 Years... 100 Cheers list, behind It's a Wonderful Life .  The film was ranked number 34 on AFI's list of the 100 greatest movies of all time , but moved up to number 25 on the 10th Anniversary list .  In June 2008, the AFI revealed its " Ten top Ten "—the best ten films in ten "classic" American film genres—after polling over 1,500 people from the creative community. To Kill a Mockingbird was acknowledged as the best film in the courtroom drama genre.