I am pretty sure we have talked about similar things in the past, but they already have come a long way.
Check out the video below for a quick insight in how easy it is to manipulate your video in simple steps and without waiting for it to render for hours.
Especially the part with the 3 friends and how he drags them around separately until he has the perfect position for them – I can see some shenanigans being done with that 
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Please teach the rest of these internet hoogialns how to write and research!