The worst movie I have watched since George Clooney's Midnight Sky. The plot is ridiculous and borders on a zombie movie. The flashback technique is overdone. There is no explanation for the myriad of unexplained phenomena What was Sandra Bullock thinking to take this role. The gore is right our of a horror movie - think Friday the 13th without the suspense. The only saving grace is the acting of the two young children. They were great. I can't believe I sat through all 2 hours waiting for it to make some sense. It never did and ended without an ending.