Clash of the Titans (2010)
Spider-Man because of 9/11
Most Zack Snyder movies are like that. Great visuals so the trailers are amazing, but the movie itself is either mid or bad. The most recent one was Rebel Moon. And they did two!
Once I found out it was another remake of Seven Samurai I quit halfway through the 1st one. That story has been told, better, countless other times than that crap.
Oh man, you missed the incredible 5 minute cinematic of grain harvesting. /s
Honestly, isn’t this pretty much the vast majority of movie trailers? Not trying to be edgy or confrontational, but pretty much all of them try to make the movie look an order of magnitude better than it is.
But in the true spirit of what I presume you’re asking: Bug.
A couple decades ago, some friends of mine who were vaguely movie fanatics were convinced that was going to be an amazing horror film. Knowing I liked scary movies, they persuaded me to go with them. That movie was a total bust. It was so far off the mark from what the trailers and ads presented it as being that literally the theater full of people burst out in laughter when the credits started rolling. In truth, it wasn’t the worst movie in the world, but if you’re going in expecting a scary movie based on the trailers, this was not it.