diff --git a/src/common/cutscenes/movieplayer.cpp b/src/common/cutscenes/movieplayer.cpp
index 2a89f1b73..ef49346f5 100644
--- a/src/common/cutscenes/movieplayer.cpp
+++ b/src/common/cutscenes/movieplayer.cpp
@@ -171,6 +171,7 @@ public:
 		memcpy(frameTicks, frameticks, 3 * sizeof(int));
 		flags = flags_;
 		buffer = fr.ReadPadded(1);
+		if (buffer.size() < 4) return;
 		fr.Close();
 
 		if (ANIM_LoadAnim(&anim, buffer.bytes(), buffer.size() - 1) < 0)
diff --git a/src/m_misc.cpp b/src/m_misc.cpp
index 016ff2f0f..6e850f3d1 100644
--- a/src/m_misc.cpp
+++ b/src/m_misc.cpp
@@ -100,7 +100,6 @@ void M_FindResponseFile (void)
 			char	**argv;
 			FileSys::ResourceData file;
 			int		argc = 0;
-			int 	size;
 			size_t	argsize = 0;
 			int 	index;
 
@@ -117,7 +116,6 @@ void M_FindResponseFile (void)
 				else
 				{
 					Printf ("Found response file %s!\n", Args->GetArg(i) + 1);
-					size = (int)fr.GetLength();
 					file = fr.ReadPadded(1);
 					argsize = ParseCommandLine (file.string(), &argc, nullptr);
 				}