Update projects from earlier versions of iMovie

If you have not updated the iMovie app on your Mac recently, a dialog appears when you first open iMovie 10, asking if you want to update your existing projects and events.

• Click Update.

  All projects and events on any storage devices attached to your Mac are updated. You can still use the original copies of your projects and events in earlier versions of iMovie.

If you want to update your projects and events later, click Update Later. iMovie opens an empty library containing a single event. You can use the event to quickly import media from your storage device or a connected camera, and then create a project to start editing. When you’re ready to update, follow the instructions in “Manually update projects and events,” below.

You can manually update your existing projects and events if you haven’t updated iMovie recently.

1. Open the iMovie app on your Mac.

2. Choose File > Update Projects and Events.

   iMovie searches your Mac and any connected storage devices for projects and events created in earlier versions of iMovie.

3. In the dialog that appears, click Update.

   All projects and events on your Mac or any connected storage devices are updated. You can still use the original copies of your projects and events in earlier versions of iMovie.