Differences between the book and the film Romeo + Juliet

After reading Romeo and Juliet, we saw the film Romeo + Juliet with DI CAPRIOOOOOOO ( Okay sorry ) 

We could see many differences between them, but what are they ?

• First, the story occured on the present, and the original Romeo and Juliet, on the 16th century.

• There isn't swords in the film, only guns.

• Romeo didn't kill Paris in the film.

• Mercutio is black in the film.

• Mantua is a city in the original story, in the film, a desert.

• Romeo didn't take drug to go in the Capulet's party.