You can make any video your own!
EdPuzzle is a free site that lets you take just about any video, edit it down to the length you want, add audio notes and questions for students, and create virtual classrooms where you can monitor individual student work.
EdPuzzle - Set up Account
Edpuzzle - Create your first video-lesson
Crop - EDpuzzle
Audio Notes - EDpuzzle
EDpuzzle - Questions
EDpuzzle - Due Date
EDpuzzle: Google Classroom Awesome Integration
EDpuzzle - How to use classes (class code & students create accounts)
Analytics - EDpuzzle