By Sarah B. Weir. Prom is supposed to be a fairy tale evening, and some teenage girls (and boys) spend their entire senior year dreaming about it. It really would be an unforgettable night if you were turned away at the door for wearing an unacceptable dress. The Wall Street Journal reports that high schools across the country are tightening their rules about what constitutes overly provocative prom clothing in response to more and more girls pushing the envelope with micro-minis, cut outs, and plunging necklines such as the ones seen in our slideshow. Trend watchers attribute the upsurge in revealing gowns to television shows such as "Dancing with the Stars" and Hollywood stars' sexy red carpet looks. Typical prom dress fails include gowns that are shorter than three inches above the knee, have low backs, are sheer, or have thigh-bearing slits. Boys aren't off the hook either. The Journal reports that most schools ban jeans, baggy pants, hats, and sneakers at prom. What do the kids think? "It's not like they are asking you to dress like a nun or anything," says Ellison Garrett, a junior at Lee County High School. Should schools ban prom gowns they deem too provocative? Let us know in the comments below.