It's not that it was poorly done or acted, in fact, the acting was quite strong; but everything was too predictable for me. The parallels drawn between the past and present was interesting, but ultimately pointless because you already know the path the past storyline takes as it's conclusion is already stated in the beginning of the movie. The differing viewpoints between the siblings was far more interesting, but never fully utilized.
The plot failed more than anything; for a supposedly bright girl to devise such a poor "plan" to defeat a mirror that manipulates people. As the mirror manipulates people, there was a HUGE lack of foresight in her plan to begin with. And the moment you see the incredibly stupid "insurance" setup she's done, you wonder why she doesn't just release it herself to begin with - which is when you realize it's a cheap plot device for one of them to die.
The plot failed more than anything; for a supposedly bright girl to devise such a poor "plan" to defeat a mirror that manipulates people. As the mirror manipulates people, there was a HUGE lack of foresight in her plan to begin with. And the moment you see the incredibly stupid "insurance" setup she's done, you wonder why she doesn't just release it herself to begin with - which is when you realize it's a cheap plot device for one of them to die.