Did you ever gasp in awe while watching an actress in a stunning gown in one of your all-time favorite movies? Did it inspire you to wear something similar on one of the most memorable nights of your life? We all have that one dream gown we want to wear on this big day, and since pop culture has a more or less a big role to play in what we might eventually choose to wear for Prom Night, we put together five of the most iconic dresses worn in some memorable movies, as a source of inspiration for our prom outfits. Lisa Kudrow and Mira Sorvino in Romy and…