ok we finally disagree because ESOTSM is a masterpiece plain and simple.
After I saw it I told my friend it was a 'mess-terpiece'. I believe there's a masterpiece in there, but what's on screen is an uneven mess.
Funny enough, I think the film is brilliantly structured. Even the stuff outside of Joel's head(Ruffalo, Wood, Dunst and Wilkinson working on Joel) serves a tonal and practical place in the whole design.