Try adding to functions.php
function filter_movies( $query ) {
if( !is_admin() && $query->is_main_query() && $query->get('post_type') == 'movie') {
$tax_query = array(
array(
'taxonomy' => 'period',
'field' => 'slug',
'terms' => 'current',
),
);
$query->set( 'tax_query', $tax_query );
}
}
add_action('pre_get_posts', 'filter_movies', 9999);