As it turns out, it is REALLY EASY and QUITE FUN! iMovie does all of the hard work. All that you need to do is bring pictures and short video clips that you like. It walks you through the process step by step.
When you open iMovie, you select the plus sign to create a new project and these 2 options present themselves. You can use the movie option to put video clips together for movie projects, but I prefer the apps splice and clips for those types of projects. The option we want to focus on is trailer.
So, what will you use this neat little tool for? I made one as a psych-up for a movie making project for El Capibara Con Botas. I have also made one to represent myself and my teaching style. I imagine that I could make a trailer following a one word image and story, using student storyboards and illustrations. It is certainly something students could easily create and would be a fun project. I am including below the two that I have currently completed. As I finish them I share them on my YouTube channel on my teaching videos playlist.
I hope this is a fun addition to your bag of teaching tricks!