To be fair, since Carrie is remake of a 1976 movie based on a book published in 1974, saying this new trailer "spoils" the movie probably isn't quite right. But still, maybe they shouldn't have reminded us about every single major event in the book in chronological order?
More specifically, since even people who have never read the book or seen the movie know how it ends, maybe we shouldn't have gotten a step-by-step account of everything that happens in the final act? Oh well. What do I know? I'm no Hollywood movie executive. For starters, I don't have a crippling cocaine addiction.