Before I begin to delve into why this film just didn't work for me, I am just going to point out that I really wanted to like this movie. I'm a big horror junkie and when found footage is used right, and I heard that this film did just that, it can actually be rather effective. Just look at the Paranormal Activity franchise. The first three films in that series were insanely effective and rather frightening. Then they stopped using the found footage aspect well and the next two films were rubbish. [REC], in terms of quality, is more like the last two Paranormal Activity instalments than the first three.
What bugs me the most about all this build up is the fact that this film is only an hour and eighteen minutes long. I was thankful that the film itself was rather short as it's very dull, but it's only dull because of how much set up there is. There's not a lot that actually takes place until the final few minutes where everything seems to escalate dramatically. There wasn't enough time given to playing around with the scares and the atmosphere they created and the final result is far from good.
It's not until the final few minutes where, as I said earlier, everything escalates and things begin to get interesting. Sure, it's still not overly scary, but the storyline goes in a very rapid direction that I didn't see coming. I was still one step ahead for the most part, but that's not what I enjoyed about it. What I enjoyed about it was that the atmosphere from way back when returned. Filmed in night vision, the film's finale is arguably the film's greatest scene.