use machine learning to insert selfie video from your camera into any existing video on your phone.
load existing video from your phone & insert real time camera selfie to this existing video.

tutorial:
https://www.youtube.com/watch?v=4UXEg8cJRd0
https://www.youtube.com/watch?v=ejOuNw52Jy4

Instructions:
1. choose a video.
2. slide to the correct video location.
3. stand in front of the selfie camera.
4. press the red button to start recording.
5. edit/trim/share from the gallery.

new:
download video template : dive with the titanic, jump from an airplane etc.