diff --git a/picard/formats/apev2.py b/picard/formats/apev2.py
index 073204745..d14841db9 100644
--- a/picard/formats/apev2.py
+++ b/picard/formats/apev2.py
@@ -215,6 +215,7 @@ class APEv2File(File):
             'podcast',
             'podcasturl',
             'show',
+            'showmovement',
             'showsort',
             }
         return bool(name) and name not in unsupported_tags
diff --git a/picard/formats/id3.py b/picard/formats/id3.py
index 884e6ec9d..99b587aca 100644
--- a/picard/formats/id3.py
+++ b/picard/formats/id3.py
@@ -527,7 +527,8 @@ class ID3File(File):
 
     @classmethod
     def supports_tag(cls, name):
-        return ((name and not name.startswith("~"))
+        unsupported_tags = {'showmovement'}
+        return ((name and not name.startswith("~") and name not in unsupported_tags)
                 or name in ("~rating", "~length")
                 or name.startswith("~id3"))
 
diff --git a/picard/formats/vorbis.py b/picard/formats/vorbis.py
index d8922b2a4..cddf01cb0 100644
--- a/picard/formats/vorbis.py
+++ b/picard/formats/vorbis.py
@@ -276,7 +276,8 @@ class VCommentFile(File):
 
     @classmethod
     def supports_tag(cls, name):
-        return bool(name)
+        unsupported_tags = {'showmovement'}
+        return bool(name) and name not in unsupported_tags
 
 
 class FLACFile(VCommentFile):