A comedy should be judged by if you laugh. A horror movie should be judged by if it is frightening. If this movie was judged by its ability to put an audience to sleep, it would be great. It's a horror movie, though, so a fail. I'm not saying I saw the end coming, but all the characters acted like they were just serving the plot instead of being actual people. Toni Collette's performance (or was it the script?) was incredibly uneven as she moved from unaffected to completely traumatized...sometimes within the same sequence. I actually liked the final story reveal and it was certainly built throughout. The problem is it took forever to get there and I hated every character so much, I couldn't care less if they lived or died. Garbage that every critic wanted to use "heightened" in a review will be lining up to kiss its ass. Here's the thing...my theater was full and never even a gasp. Did hear one dude snoring, though. See at your own risk.