The problem is the weak directing (mostly our main character Madoka, too common and the typically weak-minded main character, even though she's a girl).
And the biggest minus blames on the stupid Science demonstration (same problem occurs with Steins;Gate, but S;G is the kind of "intricately incorrect" (therefore watchers don't understand anything at all -> they thinks "it is true" easier); MSMM's is not complicated enough for normal watchers because it is both wrong and simple to understand so everybody knows that it is wrong. (The prejudice of knowing that this is false make watchers think that this movie is spreading bullsh*ts -> lower rating)
