Series of 4 in-depth videos by a CGI expert on the current use of combinations of CGI and practical effects, and how it goes beyond "practical vs CGI" (around 20 minutes per video)

Thanks for sharing this, I watched the opening minutes and it looks very interesting.

I don't know if you've seen the VFX breakdown that was released recently by ILM for Mission Impossible? The train crash was for real but it looks like it at the end of the day, it was used as reference because almost nothing of the live action shot remained.