What is so bloody hard about numbering sequels in movies? Rocky goes all the way to Rocky V, with no subtitles, but then when Rocky VI comes, it's just Rocky Balboa.
The Matrix, The Matrix: Reloaded, The Matrix: Revolutions...where are the numbers? Reloaded should be The Matrix 2: Reloaded. Makes sense, doesn't have any room for confusion.
Most of the numbers that could easily be there are replaced with subtitles. I know there's the thing with prequels, but why can't movie producers just go like Metal Gear Solid 3? Keep it numbered, but specify at the beginning of the movie that this one is a prequel, set in the year 20XX or whatever.
Honestly I just don't see the thing behind no numbers.