diff --git a/oxdata/movie/models.py b/oxdata/movie/models.py
index 651f416..78dc85e 100644
--- a/oxdata/movie/models.py
+++ b/oxdata/movie/models.py
@@ -52,6 +52,8 @@ class Imdb(models.Model):
     episodeTitle = models.CharField(max_length=1000, blank=True, default='')
     episodeYear = models.CharField(max_length=4, blank=True, default='')
     episodeDirector = models.CharField(max_length=1000, blank=True, default='')
+    
+    invalid = models.BooleanField(default=False)
 
     def __unicode__(self):
         return u"%s (%s)" % (self.title, self.imdb)
@@ -75,6 +77,9 @@ class Imdb(models.Model):
             if self.episode < 0:
                 self.episode = None
             self.save()
+        elif not self.invalid:
+            self.invalid = True
+            self.save()
 
     def json(self):
         j = {}