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Dos and Don'ts Don't: Wear a Short Dress Do: Go Full-Length "While black tie doesn't necessarily mean you have to wear a full-length gown, if you've been waiting for the right opportunity, now is your chance

Cut in a shift silhouette with an all-over rainbow check, it's as joyful in motion as it is standing still

You must wear cute heels or elegant flats, and you can't go wrong with accessorizing with simple yet elegant jewelry

A luxe top paired with a formal skirt creates black tie optional appropriate looks while offering more styling combinations

17, for the 69th BFI London Film Festival

Gala attire, too, has gotten with the times