Seriously how the hell does someone do that. It’s amazing.
It feels like magic to me. What do you do? Photoshop it frame by frame?
I’m glad that you like it!
I mainly use After Effects for these shots. Each scene has different requirements, however they usually have a few things in common: rotoscoping, creating clean background plates, then replacing / adding / changing footage. The new footage has to be tracked to the original footage, so that it all flows smoothly.