We put too much value in trailers. For good and bad. Ultimately we see a film and we like it or we don't. Its just advertising. You go to a new restaurant, try a new food. You try something new based on curiosity. Whether from ads, a reviews. or suggestion of a friend. Often you may find out you don't like it or are disappointed.
Often we find new things we like and hate without any knowledgeable. People, places, and things. I have found on cable old movies I love by accident I had never heard of. Ones I hated too.