There is a new paginated Apple Keynote theme available for film Storyboards, for the Univisium (2:1 or 18:9) aspect ratio. This theme has 3 master slides ready for print or screen use. There is a title page, a three panels + text and a text + three panels master.
To create your Storyboards, first add a new slide (in the left area navigator), you can change your slide layout (Slide Layout > Change Master button) in the right navigation panel (View > Inspector > Format)
Then chose your layout in the left navigator. whether you use text or not, page, scenes and shot numbers. You can use the rule of thirds guides to help you reframe your shots (View > Guides & Hide > Guides). If you need consistent changes in the apparence of your layout, use the Edit Master Slide button in the right navigation panel.
This template is in English, the body text is set in Avenir Light 10 points. You’ll find different styles for your text in the Format panel.
This theme makes it easy and fast to put your Storyboards together in a neat presentation.