diff --git a/BizHawk.MultiClient/MainForm.Movie.cs b/BizHawk.MultiClient/MainForm.Movie.cs
index 74ca554c2b..b9e2962e7e 100644
--- a/BizHawk.MultiClient/MainForm.Movie.cs
+++ b/BizHawk.MultiClient/MainForm.Movie.cs
@@ -106,6 +106,7 @@ namespace BizHawk.MultiClient
 				UserMovie.StopMovie();
 				Global.RenderPanel.AddMessage(message);
 				SetMainformMovieInfo();
+				Global.MainForm.ReadOnly = true;
 			}
 		}