***A cabin in the woods, frolicking youths, Bigfoot and shaky cams*** Three guys & two girls venture to a remote cabin in the heart of Texas for some fun times, but evidently anger a possible Sasquatch after maybe hitting another one at night on the nearby road. "Exists" (2014) was made by one of the co-creators of “The Blair Witch Project” (1999) and you can tell by the emphasis on handheld shaky cameras, yet they’re thankfully mixed with some conventional shooting. The unsteady cams are annoying but admittedly successful in disorienting the viewer. I like Bigfoot-oriented flicks, but some…