There are currently four movies. There are plans for fifth and sixth films.
Three so far in 2011 the fourth one will come out.
There has been, as of 2009, three Pirates of the Caribbean movies. They are The Curse of the Black Pearl, Dead Man's Chest, and At World's End.
Nobody really knows, but I should think a couple of thousand!!?
Around 12 during the Renaissance in Stoke-on-Trent within the mid 90's.