> You also have to contend with the fact that movies are essentially immutable - if you watch the same edition as someone else you are seeing an identical product. Consumer products might be damaged, might be counterfeit, or might be incorrectly classified. All of these makes it really hard to build a single source of truth for reviews.
There's also things like the vendor replacing parts but keeping the same product name/SKU, or technically giving it a different ID but hiding it so far down the marketing materials that you're unlikely to be able to find it. This comes up a lot in the aftermarket ROM communities when you have to say things like "this image works on SomePhone 6a+ but only the 2022 model!". Granted, movies also can have sometimes silent edits that are presented as if they're the same thing (looking at you, Star Wars) but I would argue that it's less pervasive and there are fewer versions to keep track of.
There's also things like the vendor replacing parts but keeping the same product name/SKU, or technically giving it a different ID but hiding it so far down the marketing materials that you're unlikely to be able to find it. This comes up a lot in the aftermarket ROM communities when you have to say things like "this image works on SomePhone 6a+ but only the 2022 model!". Granted, movies also can have sometimes silent edits that are presented as if they're the same thing (looking at you, Star Wars) but I would argue that it's less pervasive and there are fewer versions to keep track of.