There's one aspect of Paranormal Activity 2 that's at least semi-noteworthy. The two lead females, Sprague Grayden and Katie Featherstone, look like actual married suburban moms with their somewhat pudgy, unspectacular, slightly droopy bodies -- pot-bellied and sway-breasted with no particular evidence of arduous workout regimens. These are the kinds of female shapes you see all the time in the malls, but almost never (or certainly rarely) in mainstream films.
This observation obviously doesn't apply to the teenage daughter, played by Molly Ephraim, although it can be safely assumed that if she adheres to typical suburban eating and workout habits she'll resemble Grayden and Featherstone in a few years' time. But it does apply in a lumbering-dork male sense of the term to Brian Boland.