Glad the images are sorted.
Ok, add this to your function file:
<?php
function which_template_is_loaded() {
global $template;
print_r( $template );
}
add_action( 'wp_footer', 'which_template_is_loaded' );
Now go to the main films page, it will tell you the template, run the filter, is it the same template?
As I say, I wonder if the results page isn’t the same page, so the filters don’t show. The reason being where you assigned the ACF filters to (if that makes sense)