Most expensive

<?php
$args = array(
'post_status' 		=> 'publish',
'post_type' 		=> 'movies',
'order'				=> 'DESC',
'orderby'			=> 'meta_value',
'meta_query' 		=> array(
		array(
		'key'		=> 'budget',
		),
		),
		);
?>

this simple query has no errors but doesn’t work correctly, as I am trying to have the largest movie budget at top in a DESC order.

Any help greatly appreciated