Apple today released Compatibility Update for QuickTime 7.2 which delivers increased compatibility with iLife.
System Requirements:
• Mac OS X 10.3.9
• Mac OS X 10.4.9 or later
• QuickTime 7.2
Compatibility Update for QuickTime 7.2 is available via Software Update and also as a standalone installer.
More info and download link (18.1MB) here.