iMovie imports the file or files you’ve selected into your iMovie Library.
Depending on the size of the file, this process may take several minutes.
Beneath iMovie Library, select your movie.

Now, you’re ready to get started on your movie trailer.
How could Apple have left out Bad Sci-Fi, you ask?
To be fair, there is a Supernatural template, but we selected the Adventure template for our trailer.

Because each template includes different information, templates aren’t interchangeable.
Once you select and start working with a template, you’re committed to that template.
In theCreatewindow, pick the trailer template you want to use, and then selectCreate.

When you hover over a template, thePlayicon appears.
SelectPlayto see an example of a trailer in that template.
Beneath the trailer, three tabs will appear:Outline,Storyboard, andShot List.

To provide the details your movie trailer needs, complete the following steps:
Select theOutlinetab.
The tab is divided into four sections:
Each field must contain information.
If you leave a field blank, it will return to the default text.

In theName and Datesection, enter a movie name and release date.
In theCastsection, enter a name for the movie’s star.
Then, from theGenderlist, selectMaleorFemale.

In theStudiosection, enter a name for your studio.
From theLogo Stylelist, select how your studio’s logo will appear in the trailer.
In theCreditssection, enter information about your production crew and film score.

A storyboard is a visual map of your movie’s sequences.
Here, you edit the onscreen text and select clips from your movie that fit the storyboard.
Doing so automatically replaces the previous video clip or photo.

On this tab or on theStoryboardtab, you’ve got the option to change any of your selections.
Watch and Share Your Movie Trailer
To view your movie trailer, selectPlaybeneath the video window.
ThePlayicon plays the trailer in the video window.
Sharing options include email, YouTube, Facebook, and Vimeo.
Where to Find Footage for Your Trailer
iMovie offers 29 templates to help you get started.
These templates include original movie scores, movie studio logos, and customizable cast names and credits.
Animated drop zones help you choose the videos and still photos you want to use in your trailer.