blue floor length dress Alie Street Sophia Maxi Navy Get ready to own the room Leely Women White Blue Flower

This elegant black prom dress is perfect for a glamorous night out

A few more things to keep in mind when choosing black tie formal wear: Its Better to Overdress Than Underdress Aside from the rare white tie affair, black tie events are about as fancy as it gets

Galanos Black and White Gown, 1970s By Galanos, James Galanos Located in Los Angeles, CA Vintage dress from American designer James Galanos dates to the 1970's

And yet, it's not even in the movie

Semi-formal wedding attire is an extremely popular choice as far as dress codes go, but it's also one of the more ambiguous ones since "casual" and "semi-formal" can seem awfully similar