Solution

db/models.py

@@ -1 +1,10 @@
 from django.db import models
+
+
+class Genre(models.Model):
+    name = models.CharField(max_length=255)
+
+
+class Actor(models.Model):
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)

main.py

@@ -1,7 +1,30 @@
 import init_django_orm  # noqa: F401
 
 from django.db.models import QuerySet
+from db.models import Genre, Actor
 
 
 def main() -> QuerySet:
-    pass
+    Genre.objects.create(name="Western")
+    Genre.objects.create(name="Action")
+    Genre.objects.create(name="Dramma")
+    Actor.objects.create(first_name="George", last_name="Klooney")
+    Actor.objects.create(first_name="Kianu", last_name="Reaves")
+    Actor.objects.create(first_name="Scarlett", last_name="Keegan")
+    Actor.objects.create(first_name="Will", last_name="Smith")
+    Actor.objects.create(first_name="Jaden", last_name="Smith")
+    Actor.objects.create(first_name="Scarlett", last_name="Johansson")
+    Genre.objects.filter(name="Dramma").update(name="Drama")
+    (Actor.objects.filter(first_name="George", last_name="Klooney").
+     update(last_name="Clooney"))
+    (Actor.objects.filter(first_name="Kianu", last_name="Reaves").
+     update(first_name="Keanu", last_name="Reeves"))
+    Genre.objects.filter(name="Action").delete()
+    Actor.objects.filter(first_name="Scarlett").delete()
+    return Actor.objects.filter(last_name="Smith").order_by("first_name")
+
+
+if __name__ == "__main__":
+    print(main())
+    print(Genre.objects.all())
+    print(Actor.objects.all())