old_contents: from django.db import models
  
  
  class Movie(models.Model):
      tmdb_id = models.IntegerField()
new_contents: from django.contrib.auth.models import User
  from django.db import models
  
  
  class Movie(models.Model):
      tmdb_id = models.IntegerField()
      score = models.IntegerField()
      submitter = models.ForeignKey(User)
subject: Add some extra fields to movie model