diff --git a/BizHawk.Client.Common/movie/bk2/Bk2Movie.IO.cs b/BizHawk.Client.Common/movie/bk2/Bk2Movie.IO.cs
index 2815d3240c..5ea3ac732c 100644
--- a/BizHawk.Client.Common/movie/bk2/Bk2Movie.IO.cs
+++ b/BizHawk.Client.Common/movie/bk2/Bk2Movie.IO.cs
@@ -176,6 +176,11 @@ namespace BizHawk.Client.Common
 				var _gameboy = (Emulation.Cores.Nintendo.Gameboy.Gameboy)Global.Emulator;
 				Header[HeaderKeys.CYCLECOUNT] = _gameboy.CycleCount.ToString();
 			}
+			else if (Global.Emulator is Emulation.Cores.Nintendo.SubGBHawk.SubGBHawk)
+			{
+				var _subgb = (Emulation.Cores.Nintendo.SubGBHawk.SubGBHawk)Global.Emulator;
+				Header[HeaderKeys.VBLANKCOUNT] = _subgb.VBL_CNT.ToString();
+			}
 
 			var file = new FileInfo(fn);
 			if (!file.Directory.Exists)
diff --git a/BizHawk.Client.Common/movie/conversions/MovieConversionExtensions.cs b/BizHawk.Client.Common/movie/conversions/MovieConversionExtensions.cs
index 75eff16637..1454004384 100644
--- a/BizHawk.Client.Common/movie/conversions/MovieConversionExtensions.cs
+++ b/BizHawk.Client.Common/movie/conversions/MovieConversionExtensions.cs
@@ -6,6 +6,7 @@ using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores.Nintendo.Gameboy;
 using BizHawk.Emulation.Cores.Nintendo.GBHawk;
 using BizHawk.Emulation.Cores.Nintendo.SubNESHawk;
+using BizHawk.Emulation.Cores.Nintendo.SubGBHawk;
 using BizHawk.Emulation.Cores.Sega.MasterSystem;
 using BizHawk.Emulation.Cores.Consoles.Sega.gpgx;
 using BizHawk.Emulation.Cores.Consoles.Sega.PicoDrive;
@@ -365,7 +366,7 @@ namespace BizHawk.Client.Common.MovieConversionExtensions
 				movie.HeaderEntries.Add("Is32X", "1");
 			}
 
-			if (Global.Emulator is SubNESHawk)
+			if ((Global.Emulator is SubNESHawk) || (Global.Emulator is SubGBHawk))
 			{
 				movie.HeaderEntries.Add(HeaderKeys.VBLANKCOUNT, "0");
 			}
diff --git a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs
index f7da21a81d..7561afc487 100644
--- a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs
+++ b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs
@@ -254,7 +254,8 @@ namespace BizHawk.Client.EmuHawk
 			if (Emulator.Frame != CurrentTasMovie.InputLogLength - 1)
 			{
 				if (Emulator is Emulation.Cores.Nintendo.SubNESHawk.SubNESHawk
-					|| Emulator is Emulation.Cores.Nintendo.Gameboy.Gameboy)
+					|| Emulator is Emulation.Cores.Nintendo.Gameboy.Gameboy
+					|| Emulator is Emulation.Cores.Nintendo.SubGBHawk.SubGBHawk)
 				{
 					var result = MessageBox.Show("This core requires emulation to be on the last frame when writing the movie, otherwise movie length may appear incorrect.\nSeek there?", "Export movie", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
 					if (result == DialogResult.OK)