diff --git a/oxdata/movie/models.py b/oxdata/movie/models.py
index 2a084be..8ab345f 100644
--- a/oxdata/movie/models.py
+++ b/oxdata/movie/models.py
@@ -108,7 +108,7 @@ class Imdb(models.Model):
         return data
 
     def update(self, timeout=None):
-        if timeout != None:
+        if timeout is not None:
             info = ox.web.imdb.ImdbCombined(self.imdb, timeout=timeout)
         else:
             info = ox.web.imdb.ImdbCombined(self.imdb)
@@ -122,6 +122,8 @@ class Imdb(models.Model):
                     if isinstance(value, str):
                         value = normalize_value(value)
                     setattr(self, key, value)
+                else:
+                    setattr(self, key, '')
             if self.season and self.season < 0:
                 self.season = None
             if self.episode and self.episode < 0: