[#8] some fixes on movie processing

database/migrations/2024_12_30_010725_create_external_ids_table.php

@@ -15,12 +15,12 @@ return new class extends Migration
             $table->id();
             $table->integer('entity_id');
             $table->string('entity_type');
-            $table->integer('tmdb_id');
-            $table->string('imdb_id');
-            $table->string('wikidata_id');
-            $table->string('facebook_id');
-            $table->string('instagram_id');
-            $table->string('twitter_id');
+            $table->integer('tmdb_id')->nullable();
+            $table->string('imdb_id')->nullable();
+            $table->string('wikidata_id')->nullable();
+            $table->string('facebook_id')->nullable();
+            $table->string('instagram_id')->nullable();
+            $table->string('twitter_id')->nullable();
             $table->timestamps();
         });
     }