BBFC icons?

Sure! Give me a couple of days..

Great – thanks

The BBFC is available over here:
https://theater.slimndap.com/downloads/bbfc-for-theater/

Fantastic – thanks Jeroen

Is there a way to hard code it into a php page, rather than use the template placeholder?

Yes!

In your single-wp_theatre_prod.php:

$production = new WPT_Production();
echo $production->custom('bbfc', array( 'html' => true ));

Just one suggestion for this: ability to deselect all certificates.

In the admin there are initially no certificates selected; if you select the wrong one you can change your mind but you can’t revert to them being completely unselected. This could be a problem as some events on my site are live events rather than films, so if a certificate was accidentally selected there would be no turning back.

Good one. Will add it soon.

I just released a new version of the extension (1.1). It should be available as an update inside your WordPress install. Make sure that your activated your extension in Theater > Settings > Licenses.

You probably need to re-enter the ratings for all your events. Sorry.