I think that it wouldnt make that much of a differnce, ok think of it like this when the 1st movie came out, mostly kids like 10 or 11 or something went to go see it...now the 4th movie is coming out and those kids who were 10 or 11 are now like wht 14 or 15 or older...so mainly the point here is that the people who are goin to see the movie are mostly goin to be teenagers and adults, cuz they grew up with the book..as harry potter gets older, so do the readers...

does that make any sense? well it does in my head lmao

luv always,
~SYLVIA~
P.S. sry im not good at explaining things

if u need me to explain better, i'd gladly try...