There are numerous examples of movies that are generally beloved or reviled sporting Tomatometer scores which don't reflect that opinion. In the case of the "Paranormal Activity" franchise ...

and they're obsessed with the kids. [•REC] is a Spanish found ... Unlike many other paranormal movies, you get to know what's behind everything, to terrifying effect. This movie is experimental ...

When they look through the camera's lens, they begin to see the paranormal activity happening around them - including the re-emergence of young Kristi and Katie.