I watched this late at night, because I couldn't sleep. After finishing this movie I slept like a baby, that's how boring it is. And I had quite a pleasant dream after that. But, let's get to analyze this dreadful abyss of contrived, sucked-out-of-toes plot that someone approved and what's more shocking someone decided it should actually be made. There were few moments were I laughed out loud, because I could actually predict the lines of the characters. I suppose the writer needed money real bad and wrote the script on a napkin while drinking coffee in a bar in San Francisco. The main characters were so badly designed that I actually rooted for the killer and wished he would end their miserable existence. To prove you how stupid is this movie I will tell you this the blackout starts and the father goes to the mall to get his family because he fears something might happen to them. Wait, it gets funnier a neighbor of his actually gives him a pistol for protection. Come on, what is this, the light goes out for a few minutes and suddenly everyone turns into flesh-eating zombie? Gimme a break! In conclusion I could say that the "blackout" from the title means that everyone's mind was in total blackout while making this garbage.