Ethnic Vagina Finder
The Great Paper Chaser
Honestly I used to complain about it but I miss trailers that showed scenes that were not in the movie.
Rogue One did this which made for a better viewing.
I think some of it has to be the "dumbing down" mantra Hollywood has embraced. Many people don't go to movies to be moved, emotionally, or thrilled, it's just a two hour time waster in luxury seats, the fat of American capitalism and laziness dripping from the butter in the popcorn. The trailers incessant need to show the ENTIRE three act structure down to the finale is absurd. I go to the movie so often I have to see the trailers, but I'd rather not, most of the time.