Um I don't know... I'm doing 3 atm, but last year someone close to me died and that messed me up a little so I'm resitting some of my AS this year. Without the resits it would be a lot more managable, so I guess with the resit it's equivelant to four but without the extra classes. I think if I didn't have my resit I would be able to focus a lot more on my current exams and probably be a little less stressed out. I tend to kind of push film out of the way as it is possibly easier than my others, although that's foolish to do as it requires just as much work to get the good grade so that would be avoided. Why don't you wait and see what your results are? If you're doing well in all of them and [love] them all, then continue. If you enjoy doing something you'll manage easier. It depends how heavy your current ones are though, I think English is quite a heavy A Level with the amount of reading we have to do so if you have one like that it might be worth only doing three. Then again I can remember being so unbelievably stressed this year and claiming that I have too much work - English again! Seriously if you do English just drop everything but English, it's a complete joke the amount you have to do.