Book vs film

First, we read some chapters from the book and then we saw the film. There are many differences between the film and the book, and here I'm going to write some:

• In the fancy dress party, on the book it says that Romeo and Benvolio were with a mask, but on the film they were dressed with costumes. For example: Juliet was an angel.
• We have seen that in the film they all used guns, and that Julied killed herself with it, but on the book, they brought swords, and all that in the film was represented with a gun, on the real story was a sword.
• Everything is much more actual on the film: the places where happened important things, Montague's and Capulet's houses, ... By the way that it's written on the book, we can imagine that all the places were older than on the film, and we can know this for the adjectives that they've used.

On the book I imgined Friar Laurence different that appears on the film, the first time I saw this character, I couldn't imagine that he would be the friar. I was very surprised.
Another thing that impressed me, was Mercutio's behavor, i had in my mind that we'd be a pacific man, but we saw that he was a "problematic" boy, he always was looking for fighting.
Maybe there are some other differences, but now I don't remember about them.