поправил модель фильма и починил модель с расписанием

CineSync/films/models.py

@@ -36,6 +36,12 @@ class Film(Model):
         help_text='Дата выхода фильма',
     )
 
+    description = CharField(
+        help_text='Описание фильма',
+        max_length=1000,
+        null=False,
+    )
+
     genres = ManyToManyField(
         Genre,
         verbose_name='Жанры',

CineSync/timetable/migrations/0004_alter_row_auditorium.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.2 on 2024-04-14 17:21
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        (
+            "timetable",
+            "0003_alter_filmsession_auditorium_alter_filmsession_film_and_more",
+        ),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="row",
+            name="auditorium",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="rows",
+                related_query_name="rows",
+                to="timetable.auditorium",
+                verbose_name="Зал",
+            ),
+        ),
+    ]

CineSync/timetable/models.py

@@ -39,7 +39,7 @@ class Row(Model):
         ],
     )
 
-    auditorium = OneToOneField(
+    auditorium = ForeignKey(
         Auditorium,
         on_delete=CASCADE,
         verbose_name='Зал',