Index: django/newforms/models.py
===================================================================
--- django/newforms/models.py	(Revision 4451)
+++ django/newforms/models.py	(Arbeitskopie)
@@ -31,7 +31,7 @@
         raise ValueError("The %s could not be changed because the data didn't validate." % opts.object_name)
     clean_data = form.clean_data
     for f in opts.fields:
-        if isinstance(f, models.AutoField):
+        if not f.editable or isinstance(f, models.AutoField):
             continue
         setattr(instance, f.attname, clean_data[f.name])
     if commit:
@@ -63,9 +63,10 @@
     opts = model._meta
     field_list = []
     for f in opts.fields + opts.many_to_many:
-        formfield = formfield_callback(f)
-        if formfield:
-            field_list.append((f.name, formfield))
+        if f.editable:
+            formfield = formfield_callback(f)
+            if formfield:
+                field_list.append((f.name, formfield))
     fields = SortedDictFromList(field_list)
     return type(opts.object_name + 'Form', (form,), {'base_fields': fields, '_model': model, 'save': model_save})
 
@@ -84,15 +85,16 @@
     opts = model._meta
     field_list = []
     for f in opts.fields + opts.many_to_many:
-        current_value = f.value_from_object(instance)
-        formfield = formfield_callback(f, initial=current_value)
-        if formfield:
-            field_list.append((f.name, formfield))
+        if f.editable:
+            current_value = f.value_from_object(instance)
+            formfield = formfield_callback(f, initial=current_value)
+            if formfield:
+                field_list.append((f.name, formfield))
     fields = SortedDictFromList(field_list)
     return type(opts.object_name + 'InstanceForm', (form,),
         {'base_fields': fields, '_model': model, 'save': make_instance_save(instance)})
 
 def form_for_fields(field_list):
     "Returns a Form class for the given list of Django database field instances."
-    fields = SortedDictFromList([(f.name, f.formfield()) for f in field_list])
+    fields = SortedDictFromList([(f.name, f.formfield()) for f in field_list if f.editable])
     return type('FormForFields', (BaseForm,), {'base_fields': fields})
Index: tests/modeltests/model_forms/models.py
===================================================================
--- tests/modeltests/model_forms/models.py	(Revision 4451)
+++ tests/modeltests/model_forms/models.py	(Arbeitskopie)
@@ -40,10 +40,17 @@
 class Article(models.Model):
     headline = models.CharField(maxlength=50)
     pub_date = models.DateField()
+    created = models.DateField(editable=False)
     writer = models.ForeignKey(Writer)
     article = models.TextField()
     categories = models.ManyToManyField(Category, blank=True)
 
+    def save(self):
+        import datetime
+        if not self.id:
+            self.created = datetime.date.today()
+        return super(Article, self).save()
+
     def __str__(self):
         return self.headline