To be fair, even people aren't able to judge a movie properly. People often change their opinion of movies on second viewing.
Just watching a movie at different times of day can significantly alter your opinion of a movie.
Just watching a movie at different times of day can significantly alter your opinion of a movie.
Being interested in video games, I've thought a lot about rating systems. Older magazines used to use 10 (or even 100) point scales, and you quickly realize all the rating ends up taking place in the top 30-40 percent of your scale anyway... so why not limit the gradations. For my money, 5 stars makes sense... you've got a middle of the road "average" 3 star movie, and then two stars above and below.
The stars are also just a snapshot of feeling, and don't account for any context like expectations, identity, mood etc. Maybe I'd give Black Swan five stars because it was impressive and won awards, but it doesn't mean I necessarily enjoyed it or would recommend it to others. Perhaps a system based loosely on Net Promoter Score ideas could be more helpful
In my case I didn't bother rating it because it A) didn't seem fair, and B) rating stuff with any more precision than "like/didn't like" seems really pointless to me.