Twilight is a popular franchise- so popular, in fact, that some people plan their weddings around it! While some people go so far as to change their name to Cullen, other people just love the Twilight style and want to incorporate that into their wedding.
Because the Twilight wedding was so widely popular, replicas of Bella Swan's wedding dress are available online. it's a sexy yet traditional style--plain and long-sleeved in the front, with a daring back cutout. You can buy it here
Generally, Twilight weddings have red/black colors combined with white, but other people have chosen to use purple. For Breaking Dawn inspired weddings, people tend to choose sage green and white as their colors. Browse this collection of Twilight wedding decor: