This could as well become a drinking game. We pretty much consider visual effects to be the stuff we are aware of, so when someone is, say, flying, or when huge alien ships fight big shiny coloured robots. But there's also those video effects that you would never spot if you weren't told about.
In 'The art of compositing' we can see just that - the normal elements of a video edit that aren't exactly that special. A small dog for instance, or a van in the background.
Watch the video and try to spot what's unreal.