Open Imovie Library

An iMovie library holds all the media and data used to make movies in iMovie. If your iMovie library is large and you want to free up storage space on your Mac, you can move your iMovie library to an external drive.

Imovie Library Won't Open
Open Imovie Library In Final Cut Pro

Before you move an iMovie library, it's a good idea to back up your Mac.

Now, let us take a look at the steps involved in adding and sharing iMovie to your iTunes Library real quick. Open your movie browser or folder. Select a movie or a clip to share. To select multiple items in the library, click on the adjust button on the tool bar. In the following dialogue, select any of the following options.
1) Download iPhoto Library Manager and load it. 2) Click “Add Library” and select your original library file that you want to try and fix in the window that comes up. 3) Your library should now show up in the left hand side of the application. Click on this library and then go up to the menu at the top and click “Library” and then.
Navigate back to Finder and open the Movies folder and move the iMovie Library folder to the external drive. Double click to open it in iMovie to make sure everything is present. Delete the original iMovie Library folder on your internal drive.
If you want to open your hard, you can simply click on the imovie library in your external hard drive. Go to File = Open Library = Other 3. Choose “Locate” 4. Choose the imovie library in your external hard drive. Choose the project want to open. And the project and events are here!.

When you first open iMovie on your iPad, you should see a gray box with a plus sign that is labeled Create Project. Tapping on this will let you choose whether you want to make either a Movie or Trailer. The Movie option is better in order to have total control over the project, but if you want to follow a template, you can choose Trailer.

Moving your library to an external hard drive doesn’t affect any iMovie Theater content you have moved to iCloud.

Prepare your drive

You can store your library on an external storage device such as a USB Thunderbolt drive formatted as APFS or Mac OS Extended (Journaled). Apple doesn’t recommend storing iMovie libraries on external storage devices like SD cards and USB flash drives, or drives shared on a network.

You can’t store your library on an external drive or other disk used for Time Machine backups.

Move a library to an external storage device

Imovie Library Won't Open

Quit iMovie.
Select your external drive in the Finder, then choose File > Get Info.
If the information in Sharing & Permissions isn’t visible, click the triangle , then make sure the 'Ignore ownership on this volume' checkbox is selected. If it's not selected, click the lock icon to unlock it, enter an administrator name and password, and then select the checkbox.
Click your desktop to make sure that you’re in the Finder, then choose Go > Home from the menu bar at the top of your screen.
Open the Movies folder, then drag the file named iMovie Library to your external hard drive.
When the library file is finished copying to your external drive, double-click the library file on the external drive to open it in iMovie. If an alert appears asking you to give iMovie access to a removable volume, click OK.
If you clicked Don't Allow, in the Finder choose Apple menu  > System Preferences, click Security and Privacy, then click Privacy. Click Files and Folders in the sidebar, then select 'Removable Volumes' under iMovie.
Make sure the library you moved contains all your media, then drag the original file from your Movies folder on your Mac to the Trash.

If you disconnect the external drive

When your external drive is connected to your Mac, the library you moved to the external drive opens automatically in iMovie. If you disconnect the external drive containing the library, iMovie opens to a new, empty library created in the Movies folder on your Mac. iMovie automatically saves any projects you create and media you import in the new library.