I love Ackles, however I just got back from seeing My Bloody Valentine (had an hour to kill at the mall)... oh... my... God.
It was so aggressively stupid.
Ah, it was just a "leave your brain at the door" slasher flick. There are plenty worse, although it pales next to the original.
They shouldn't have tried the "twist," though. It created too many plot holes.