Because I don’t want to pay $20 and spend 2 and a half hours to decide whether I wanted to spend $20 and two and a half hours on that thing.
Reviews exist to help people decide. Of course they won’t be exactly my opinion, but they can tell me whether the experience will be worth my time and money. Or at least if the movie contains stuff that I definitely wouldn’t want to see.
Online movie reviews [Beetlemoses] (startrek.website)