These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Serial Numbers Filed Off: Of Jaws. This was why that movie didn't have an official release in America back in the eighties, since Universal saw it for the rip-off it was and successfully sued to keep it out of the States.