Zack Snyder trotted out stars Ben Affleck, Henry Cavill and new Wonder Woman Gal Gidotat Comic-Con today to tease the long-awaited follow-up to “Man of Steel,” “Batman v Superman: Dawn of Justice.” And yes, the trailer is pretty spectacular and awe-inspiring. It even made me, a vocal “Man of Steel” critic, start to think, “Wait, this could actually be really good.” Here, try for yourself: But here’s the thing: Snyder has fooled us this way before — repeatedly. All of his films, regardless of the quality of the finished product, have had impressive trailers. The first glimpse of “Man of Steel” was amazing. Trailers for “300” and “Watchmen” gave me goosebumps. Heck, even the trailer for “Sucker Punch” made it look amazing. But when it came time for viewing the full movies, those expectations usuallyturned to massive disappointment. RELATED:VIDEO:Comic-Con exclusive look at ‘Star Wars: The Force Awakens’ So while the Internet is going nuts over the extensive battle scenes and nuttiness — and Jesse Eisenberg’syouthful, hirsute take on Lex Luthor — let’s all take a step back and remember that Snyder has hurt us before in exactly this way. Maybe we shouldn’t be so quick to trust him again. Follow Ned Ehrbar on Twitter:@nedrick