Querying two different post types with the same taxonomony

I have a two custom post types "venues" and "events".. How do i query "venues" then display all the "events" that have the same taxonomy values.

  <?php
                  $taxonomy = 'venue-name';
                  $param_type = 'venue-name';
                  $tags = wp_get_post_terms( $post->ID , $taxonomy, $tax_args);
                  if ($tags) {
                    foreach ($tags as $tag) {
                      $args = array(
                                  'post_type' => 'venues',
                                  "$param_type" => $tag->slug,
                                  'post__not_in' => array($post->ID),
                                  'showposts'=> 1,    
                              );
                      $my_query = new WP_Query($args);
                      if( $my_query->have_posts() ) {
                        while ($my_query->have_posts()) : $my_query->the_post(); 
?>