If I watch a trailer and it leaves me without any desire to watch the film, yeah the trailer failed with me. That's the worst any trailer leaves me feeling. Others were far more negative about the film. Lots of people ended up hating a film they had never seen. That's what I don't get.That's like saying "I'll never understand how there can be so much excitement generated for a movie based only on trailers". Trailers are used to sell an upcoming film, and they're either successful at that or they fail to work, as was the case with Ghostbusters.