my %movies_data = ( 'Firefly' => { 'title' => 'Firefly', 'start year' => '2002', 'end year' => '2003', 'media' => 'tv', 'based on' => undef, 'company' => undef, }, 'Criminal Minds' => { 'title' => 'Criminal Minds', 'start year' => '2005', 'end year' => 'tbd', 'media' => 'tv', 'based on' => undef, 'company' => undef, }, 'The 10th Kingdom' => { 'title' => 'The 10th Kingdom', 'start year' => '2000', 'end year' => '', 'media' => 'miniseries', 'based on' => undef, 'company' => undef, }, 'Iron Man' => { 'title' => 'Iron Man', 'start year' => '2008', 'end year' => '', 'media' => 'film', 'based on' => 'comics', 'company' => 'Marvel Comics', }, 'Tin Man' => { 'start year' => '2007', 'title' => 'Tin Man', 'end year' => '', 'media' => 'miniseries', 'based on' => 'novel', 'company' => 'L. Frank Baum' }, 'The Avengers (1998)' => { 'title' => 'The Avengers (1998)', 'start year' => '1998', 'end year' => '', 'media' => 'film', 'based on' => 'television series', 'company' => 'Thames Television', }, );