diff --git a/manimlib/for_3b1b_videos/pi_creature_scene.py b/manimlib/for_3b1b_videos/pi_creature_scene.py
index a30dcd20..ee36564c 100644
--- a/manimlib/for_3b1b_videos/pi_creature_scene.py
+++ b/manimlib/for_3b1b_videos/pi_creature_scene.py
@@ -213,7 +213,6 @@ class PiCreatureScene(Scene):
             time_to_blink = self.total_wait_time % self.seconds_to_blink == 0
             if blink and self.any_pi_creatures_on_screen() and time_to_blink:
                 self.blink()
-                self.num_plays -= 1  # This shouldn't count as an animation
             else:
                 self.non_blink_wait()
             time -= 1
diff --git a/manimlib/scene/scene.py b/manimlib/scene/scene.py
index c4217fe4..ab60ce77 100644
--- a/manimlib/scene/scene.py
+++ b/manimlib/scene/scene.py
@@ -661,6 +661,7 @@ class Scene(Container):
             # should be transparent.
             command += [
                 '-vcodec', 'qtrle',
+                # '-vcodec', 'png',
             ]
         else:
             command += [
@@ -688,7 +689,8 @@ class Scene(Container):
     def combine_movie_files(self):
         partial_movie_file_directory = self.get_partial_movie_directory()
         kwargs = {
-            "remove_non_integer_files": True
+            "remove_non_integer_files": True,
+            "extension": self.movie_file_extension,
         }
         if self.start_at_animation_number is not None:
             kwargs["min_index"] = self.start_at_animation_number
diff --git a/manimlib/utils/output_directory_getters.py b/manimlib/utils/output_directory_getters.py
index 0bedad08..decd1ea2 100644
--- a/manimlib/utils/output_directory_getters.py
+++ b/manimlib/utils/output_directory_getters.py
@@ -50,7 +50,9 @@ def get_sorted_integer_files(directory,
                              min_index=0,
                              max_index=np.inf,
                              remove_non_integer_files=False,
-                             remove_indices_greater_than=None):
+                             remove_indices_greater_than=None,
+                             extension=None,
+                             ):
     indexed_files = []
     for file in os.listdir(directory):
         if '.' in file:
@@ -65,6 +67,8 @@ def get_sorted_integer_files(directory,
                 if index > remove_indices_greater_than:
                     os.remove(full_path)
                     continue
+            if extension is not None and not file.endswith(extension):
+                continue
             if index >= min_index and index < max_index:
                 indexed_files.append((index, file))
         elif remove_non_integer_files:
diff --git a/stage_scenes.py b/stage_scenes.py
index 64c6d249..53b099d7 100644
--- a/stage_scenes.py
+++ b/stage_scenes.py
@@ -53,10 +53,12 @@ def stage_animations(module_name):
             scene_class, **output_directory_kwargs
         )
         if os.path.exists(pmf_dir):
-            for file in get_sorted_integer_files(pmf_dir):
-                sorted_files.append(
-                    os.path.join(pmf_dir, file)
+            for extension in [".mov", ".mp4"]:
+                int_files = get_sorted_integer_files(
+                    pmf_dir, extension=extension
                 )
+                for file in int_files:
+                    sorted_files.append(os.path.join(pmf_dir, file))
         else:
             for clip in [f for f in files if f.startswith(scene_name + ".")]:
                 sorted_files.append(os.path.join(animation_dir, clip))