copy a movie and make an edited version
I have created a movie which is 28 minutes long. I want to make a shorter version of the same movie and keep the original. Is it possible just to edit the original project and then save it with a new name, or something like this? Or do I need to just start from scratch again?
I am using iMovie 10.1
MacBook Air, OS X El Capitan (10.11.1)