Unable to filter post types with OR operator

I am trying to limit the available post types like this: name = ‘cars’ or name = ‘movies’ and cannot get this to work.

add_filter( 'pts_post_type_filter', 'pts_cpt_enable');
function pts_cpt_enable( $args ) {
	$args = array(
	'name' => 'cars',
	'name' => 'movies'
	);
	return $args;
}

I see the plugin uses the default ‘and’ operator in the get_post_types() function, so I changed this to use ‘or’:

$post_types = get_post_types( $args, 'objects','or');

Still, the plugin only displays the ‘movies’ post type in this example. Any suggestions? Thank you.

http://wordpress.org/support/plugin/post-type-switcher

http://wordpress.org/extend/plugins/post-type-switcher/