A funny and informative YouTube video about how aspect ratios get screwed up due to home video and streaming and also how it's a pain to watch movies the way the artist intended, like how DUNE and Zack Snyder's Justice League were meant for IMAX, but got borked.
VR180 version: https://www.youtube.com/watch?v=wlUV6y5TUko
2D version (which is how I made the GIF): https://www.youtube.com/watch?v=MFGKc69RN7c
