In The British Isles WEDDINGS are a bit different from weddings in Spain. Before that especial day, a couple get ENGAGED so they become FIANCE (the boy) & FIANCEE (the girl). Before the wedding, boys go out one night called STAG NIGHT and girls do the same on a HEN NIGHT. On the WEDDING DAY the protagonists of the celebration are called the BRIDE (The girl) & the GROOM (the boy). The BEST MAN is the equivalent of our "padrino" but he is usually a young man who is the groom's best friend or brother. There is no "madrina" but BRIDE'S MAIDS who dress exactly the same and they are friends or relatives of the Bride. The most important moment after the CEREMONY & at the end of the RECEPTION is THE SPEECHES: The GROOM, THE BEST MAN & other special guests speak funnily or seriously about the BRIDE & the GROOM and their relation. After the wedding, the MARRIED COUPLE make a trip called the HONEY MOON. I've been to two weddings in Ireland. They were very special. We danced "Macarena" during the BALL "in my honour" (for being Spanish). Well, I would have preferred "La chica de ayer" or "Escuela de calor"... Anyway, I had a fantastic time in both. Irish people & Spanish people love "fiestas" or celebrations in the same way.
There are several links with vocabulary related to weddings. Here are some examples:http://www.english-at-home.com/vocabulary/marriage-and-wedding-vocabulary/
http://www.learnamericanenglishonline.com/images/Vocabulary%20Images/Wedding/Wedding_Vocabulary.html
There are also films which reflect how weddinds are like: Four weddings and a funeral, My best friend's wedding: This scene is unforgetable: Rupert Everett sings I'll say a little prayer for you: