iMovie HD Launcher for Yosemite
I have been using iMovie since version 1 on the classic MacOS. Which means I know the iMovie HD interface really well. So I was dismayed to find that it doesn’t launch on Yosemite.
But I found information that said it does run, it just can’t be launched by clicking on its icon.
I already had some Automator applets that launched apps so I modified one to launch iMovie HD and gave it an icon. If you like the idea of a clickable launcher for iMovie HD, get it here. If you don’t want to trust a random app you can open it in Automator to verify it for yourself.