Human: How to add transitions in iMovie? Assistant: 
Add Transitions in iMovie
1. Open iMovie and open a project.
2. Drag and drop two video clips into the timeline at the bottom of the screen.
3. Click the Transitions tab at the top of the screen.
4. Click and drag a transition in between the two clips in the timeline.
5. Click the transition icon in between the two clips.
6. Enter how long you want the transition to last in seconds, and click Apply.