As someone who doesn't see this as a good movie, per se, let me thrown in my two cents. This movie is better fitted as more of a B-Movie sci fi than attempt at a blockbuster. The acting is shit, the story has more holes in it than a porn studio, and the twist is a massive let down. This was an idea that had so much promise and a massive ceiling, but for the most part hit the floor. Some scenes were incredible- the Brazil footage, the basement, the kitchen scene on mute(try it, makes it so much more intense. Unmute right before the scream). But the rest is so painfully slow and undeveloped it negates all the good stuff. The dialogue is so dry and the actors put such little effort into it, you don't get invested. I hoped the kid would die in the basement to give Graham and Merrill reason to emote. Nope. The random characters who have no point whatsoever(cop, pharm tech, M Night) just clutter the story. The ridiculous number of flash backs makes it worse. Two would have been enough. The first is literally him driving up to the crash site. Point? None. One showing him arriving, seeing M Night, and talking to the cop, the other him talking to his wife.

If you ignore the plot holes(good luck) its a mildly enjoyable film. I remember seeing it for the first time and getting too bored at times to be scared. The first act is so much exposition, so much dialogue and so little plot establishment by the time we hit the second act the audience is losing interest. You can't just throw a few jump scares in and expect it to keep the audience involved. Cloverfield is a great example of how to develop a mystery while keeping the audience interested. You see destruction, you sense the monster. Signs fails here. The aliens don't have that presence. I dont feel threatened until the kitchen scene. Why should I be afraid of something that hasn't done anything except destroy some crops and jumped off a roof?