Index: vimeo_link_formatter.module
===================================================================
--- vimeo_link_formatter.module	(revision 21)
+++ vimeo_link_formatter.module	(working copy)
@@ -55,7 +55,6 @@
 function vimeo_link_formatter_field_formatter_view(&$entity_type, &$entity, &$field, &$instance, &$langcode, &$items, &$display) {
   // Call the function which handles this formatter.
   $function = __FUNCTION__ . '_' . $display['type'];
-  
   return call_user_func($function, $entity_type, $entity, $field, $instance, $langcode, $items, $display);
 }
 
@@ -172,15 +171,20 @@
     $url = array();
 
     if ($id = $matches[2]) {
-      $hash = unserialize(file_get_contents("http://vimeo.com/api/v2/video/$id.php"));
 
-      $thumb_size = $display['settings']['thumb_size'] ? $display['settings']['thumb_size'] : 'medium';
+      $video_raw = drupal_http_request("http://vimeo.com/api/v2/video/$id.php")->data;
 
-      $thumb_url = $hash[0]['thumbnail_'.$thumb_size];
+      if ($video_raw) {
+        $video_hash = unserialize($video_raw);
 
-      $img = theme('image', array('path' => $thumb_url, 'alt' => $hash[0]['title']));
+        $thumb_size = $display['settings']['thumb_size'] ? $display['settings']['thumb_size'] : 'medium';
 
-      $ret[] = array('#markup' => $img);
+        $thumb_url = $video_hash[0]['thumbnail_'.$thumb_size];
+
+        $img = theme('image', array('path' => $thumb_url, 'alt' => $video_hash[0]['title']));
+
+        $ret[] = array('#markup' => $img);
+      }
     }
     else {
       // The link is not a valid Vimeo.com link.