[brudgers]

There are categorical differences between movies and appliances.

For example, movies last about two hours while even a terrible appliance is likely to last about two years and when a movie is over ths watcher doesn’t suddenly have a significant problem in their life. When an appliance fails people usually do. So the incentives to write a review are different.

Or to put it differently, nobody buys fifty microwaves a year while many many people watch fifty movies a year.

Good luck.