I need to create a page that shows all the posts that are tagged with "video". It's not working like I expect. It's only showing the normal blog posts - not the other custom post types that are also tagged with 'video'. Below is the code that I've got. For reference the function get_bonn_post_types is an array of all the post types on my install…

Need some help with Wordpress Custom Tax Query and Group Taxomonies

<?php 

/*
Hello!

This has been bugging me for the best part of a day now, so I'm appealing to help in order to calm my nerves.

I run a site that has many custom post types. Every post type shares the use of the post_tag taxonomy.

I need to create a page that shows all the posts that are tagged with "video". It's not working like I expect. It's only showing the normal blog posts - not the other custom post types that are also tagged with 'video'.

Below is the code that I've got. For reference the function get_bonn_post_types is an array of all the post types on my install.
*/

$args = array(
  'post_type' => array(get_bonn_post_types()),
  'tax_query' => array(
    array(
      'taxonomy' => 'post_tag',
      'field' => 'slug',
      'terms' => 'video'
    )
  )
);
query_posts($args);

/* Why isn't this working. Any help is of course much appreciated! :) */

?>