What is the earliest operating System that has iMovie?

I have a iBook G4 and I created an iMovie on this machine years ago.
I recently bought a newer laptop and now I can not open this iMovie.
I reinstalled the System software, which is, Mac OS X (10.5.8) but there is no iMovie in my Application folder to open the old movie and re-save under a different style. How do I get iMovie back on my iBook G4?

  • Asked about:  Mac OS X 10.6 Snow Leopard

No Answers have been submitted