diff --git a/modules/juce_video/native/juce_mac_QuickTimeMovieComponent.mm b/modules/juce_video/native/juce_mac_QuickTimeMovieComponent.mm
index 8100b61ec0..c9966a78d7 100644
--- a/modules/juce_video/native/juce_mac_QuickTimeMovieComponent.mm
+++ b/modules/juce_video/native/juce_mac_QuickTimeMovieComponent.mm
@@ -116,13 +116,15 @@ static QTMovie* openMovieFromStream (InputStream* movieStream, File& movieFile)
     return movie;
 }
 
-bool QuickTimeMovieComponent::loadMovie (const File& movieFile_, const bool showController)
+bool QuickTimeMovieComponent::loadMovie (const File& file, const bool showController)
 {
-    return loadMovie ((InputStream*) movieFile_.createInputStream(), showController);
+    return loadMovie (file.createInputStream(), showController);
 }
 
 bool QuickTimeMovieComponent::loadMovie (InputStream* movieStream, const bool showController)
 {
+    const ScopedPointer<InputStream> movieStreamDeleter (movieStream);
+
     closeMovie();
 
     if (getPeer() == nullptr)
@@ -133,6 +135,9 @@ bool QuickTimeMovieComponent::loadMovie (InputStream* movieStream, const bool sh
         return false;
     }
 
+    if (movieStream == nullptr)
+        return false;
+
     movie = openMovieFromStream (movieStream, movieFile);
 
     [theMovie retain];