In most cases the rule of thumb is you can hide the good bits from the trailer, in which case no one will see the good bits because no one will go to the film, or you can show the good bits in the trailer and people will go to theaters and pay to watch the rest of the film.
I'm not entirely certain you need to go that far. My issue is that most trailers, especially the ~two minute ones, show the majority of the story arc, and either contain spoilers, or hint heavily at those spoilers. That removes dramatic tension and any desire for me to watch.
A made up example, but I've seen similar: let's take an ensemble superhero action piece. You see a clip of a scene in the trailer where superhero A is in mortal peril, set against a desert backdrop. Compelling, but when I see the movie in theaters, there's an action set piece where superheroes A and B are fighting against villains C and D. B is temporarily incapacitated, and it looks like C and D have the drop on A. Unfortunately, this fight has an ocean backdrop. As such, all dramatic tension is gone, since I know A makes it to a desert I haven't seen yet.
I've had some success making a strict rule of watching only teasers (~30 seconds), or the first 30 seconds of a normal trailer, where they have time to set up the basics, but not enough to ruin anything. If I'm at a movie, I'll just close my eyes after that point, since I can't fast forward, and removing visuals is usually enough.
> You see a clip of a scene in the trailer where superhero A is in mortal peril, set against a desert backdrop. Compelling, but when I see the movie in theaters, there's an action set piece where superheroes A and B are fighting against villains C and D. B is temporarily incapacitated, and it looks like C and D have the drop on A. Unfortunately, this fight has an ocean backdrop. As such, all dramatic tension is gone, since I know A makes it to a desert I haven't seen yet.
I don't follow your logic. You already know A makes it out OK, because it's a superhero movie. Why doesn't that ruin the dramatic tension equally?
