Currently working on a video project right now that educates users how to use an internal CRM app. I can't show the final result as it is all covered under non-disclosures, but I wanted to show this element and explain it.
I took this photo to superimpose the app screen capture onto it so that the walkthrough of the app would look interesting, and give you something visually attractive watch. I'm incredibly impressed with the final result and will be doing this with other devices for UI walkthroughs.
And yes, that's a half-eaten doughnut in the top left corner.