How can I open iMovie 10 project in iMovie 9?
I updated to iMovie 10 thinking that it would have better features than iMovie 9, but I'm realizing that it is far less functional than the previous version. I'd like to switch back to working in iMovie 9 but keep my progress -- how can I go about opening my project in iMovie 9?
MacBook Pro, OS X El Capitan (10.11.6)