diff --git a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
index 75235676fd..0f5a56d1d1 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
@@ -44,7 +44,7 @@ namespace BizHawk.Client.Common
 			WasLagged = TasLagLog.History(index + 1)
 		};
 
-		public TasMovie(string path, bool startsFromSavestate = false, BackgroundWorker progressReportWorker = null)
+		public TasMovie(string path, bool startsFromSavestate = false)
 			: base(path)
 		{
 			// TODO: how to call the default constructor AND the base(path) constructor?  And is base(path) calling base() ?
@@ -64,7 +64,7 @@ namespace BizHawk.Client.Common
 			CurrentBranch = -1;
 		}
 
-		public TasMovie(bool startsFromSavestate = false, BackgroundWorker progressReportWorker = null)
+		public TasMovie(bool startsFromSavestate = false)
 		{
 			if (!Global.Emulator.HasSavestates())
 			{
diff --git a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
index 9bf19f6fee..53dfaf3f1a 100644
--- a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
+++ b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
@@ -550,7 +550,7 @@ namespace BizHawk.Client.EmuHawk
 				return false;
 			}
 
-			TasMovie newMovie = new TasMovie(startsFromSavestate, _seekBackgroundWorker);
+			TasMovie newMovie = new TasMovie(startsFromSavestate);
 			newMovie.TasStateManager.InvalidateCallback = GreenzoneInvalidated;
 			newMovie.Filename = file.FullName;
 
@@ -604,7 +604,7 @@ namespace BizHawk.Client.EmuHawk
 		{
 			if (AskSaveChanges())
 			{
-				Global.MovieSession.Movie = new TasMovie(false, _seekBackgroundWorker);
+				Global.MovieSession.Movie = new TasMovie();
 				var stateManager = ((TasMovie)Global.MovieSession.Movie).TasStateManager;
 				
 				stateManager.InvalidateCallback = GreenzoneInvalidated;