diff --git c/WebCore/WebCore.pri i/WebCore/WebCore.pri
index 3331626..a70b28d 100644
--- c/WebCore/WebCore.pri
+++ i/WebCore/WebCore.pri
@@ -60,6 +60,7 @@ STYLESHEETS_EMBED = \
     $$PWD/css/wml.css \
     $$PWD/css/mediaControls.css \
     $$PWD/css/mediaControlsQt.css \
+    $$PWD/css/mediaControlsQtFullscreen.css \
     $$PWD/css/themeQtNoListboxes.css \
     $$PWD/css/themeQtMobile.css

diff --git c/WebCore/platform/graphics/qt/MediaPlayerPrivateQt.cpp i/WebCore/platform/graphics/qt/MediaPlayerPrivateQt.cpp
index d69dbc3..ffe6dee 100644
--- c/WebCore/platform/graphics/qt/MediaPlayerPrivateQt.cpp
+++ i/WebCore/platform/graphics/qt/MediaPlayerPrivateQt.cpp
@@ -159,7 +159,8 @@ void MediaPlayerPrivateQt::load(const String& url)

     // QtMultimedia does not have an API to throttle loading
     // so we handle this ourselves by delaying the load
-    if (m_preload == MediaPlayer::None) {
+    if (m_preload == MediaPlayer::None
+            || m_webCorePlayer->shouldForceFullscreenVideoPlayback()) {
         m_delayingLoad = true;
         return;
     }
diff --git c/WebCore/platform/qt/RenderThemeQt.cpp i/WebCore/platform/qt/RenderThemeQt.cpp
index 7388b76..fffb594 100644
--- c/WebCore/platform/qt/RenderThemeQt.cpp
+++ i/WebCore/platform/qt/RenderThemeQt.cpp
@@ -989,7 +989,12 @@ ControlPart RenderThemeQt::initializeCommonQStyleOptions(QStyleOption& option, R

 String RenderThemeQt::extraMediaControlsStyleSheet()
 {
-    return String(mediaControlsQtUserAgentStyleSheet, sizeof(mediaControlsQtUserAgentStyleSheet));
+    String result = String(mediaControlsQtUserAgentStyleSheet, sizeof(mediaControlsQtUserAgentStyleSheet));
+
+    if (m_page && m_page->chrome()->client()->shouldForceFullScreenVideoPlayback())
+        result += String(mediaControlsQtFullscreenUserAgentStyleSheet, sizeof(mediaControlsQtFullscreenUserAgentStyleSheet));
+
+    return result;
 }

 // Helper class to transform the painter's world matrix to the object's content area, scaled to 0,0,100,100