Step
1
Enter the iMovie app
The iMovie app comes installed on the iPhone. If it’s not on your home screen, then you can search for it by tapping Search towards the bottom of the screen.
Step
2
Open a movie project
If you want to edit a video from your camera roll, you can select Start New Project, tap Movie and then find the recording you want to edit.
Step
3
Tap Edit, then tap on the video clip
Tap on the video clip in the middle of the screen to select it for editing. You’ll know you’ve selected it correctly because it’ll be highlighted with a yellow bar.
Step
4
Adjust the video selection accordingly
If you only want to slow down a portion of the video, drag the yellow range handle accordingly, as shown. Otherwise the whole video will be selected automatically.
Step
5
Tap on the Speed icon and adjust the slider accordingly
Once you tap on the Speed icon, you’ll see a slider just above it. Drag the slider to the right to increase the speed or drag the slider to the left to decrease the speed.
Step
6
When you’re happy, tap Done
Once you’ve tapped Done, you’ll return to the project screen, where you’ll see your edited video listed. To make any changes simply tap Edit again to open up the editor again.