It looks to me like you've got your contain
key in the wrong place. It should be defined before the models.
<?php
$this->paginate = array(
'contain' => array(
'Industry' => array(
'Movie' => array(
'order' => 'Movie.release DESC',
'Trailer' => array(
'conditions' => array(
'Trailer.id !=' => $trailer_id
)
)
)
)
),
'conditions' => array(
'Industry.id' => $id
)
);