title: How to create a UserProfile form in Django with first_name, last_name modifications?
body: <p>If think my question is pretty obvious and almost every developer working with <code>UserProfile</code> should be able to answer it.</p>
  
  <p>However, I could not find any help on the django documentation or in the Django Book.</p>
  
  <p>When you want to do a <code>UserProfile</code> form in with Django Forms, you'd like to modify the profile fields as well as some <code>User</code> field.</p>
  
  <p>But there is no <code>forms.UserProfileForm</code> (yet?)!</p>
  
  <p>How do you do that?</p>