how can I download iMovie 9.0 ?

Hi, keiseana,

iMovie 9 has been discontinued by Apple and is no longer available at the app store.

However, take a look at this thread (read it all the way through) and you will find some ways to download iMovie 9.0.9.

https://discussions.apple.com/thread/251259186?answerId=253429391022&login=true

-- Rich

Can you tell us what operating System you are currently running on your Mac?

If you are running El Capitan or later then iMovie ver 9 may not run very well, or even at all .

Do you ever recall having iMovie versions 9 or 10 on your Mac ?

If you bought your 2012 MacBook Pro before October 2013 then it would have had iMovie ver 9 .

If Apple were selling the 2012 MacBook Pro after Oct 2013 then it may have shipped with iMovie ver 10 along with the OS Mavericks .

In either case iMovie may be listed on your PURCHASED page of the App Store .

So sign into the App Store with your Apple ID and go to the Purchased Page.

Do you see iMovie listed on this page ? If you do then you should be able to download a compatible version.