James Bond movies always start with an opening scene before the title roll. You get lifted out of our audience chair and thrown into the action. In presentation design, you have a similar option.
The conventional route is to put up a summary chart with the key messages you want to give. The James Bond option is to start with some interesting stories and case examples that are not completely tight together in some logical structure. After that short introduction you can put up the page that puts it all together.