By: Trevor Jeffery Ciarán Foy’s Sinister 2 startles to the point of frustration, but frightens beyond its use of clichés. In the cellar of his runaway family’s newly squatted home, Dylan joins a pack of ghost kids to watch the snuff films they made, in order to stop his nightmares.  It seems counterintuitive, but the snappily dressed leader of the pack insists it helps.  Dylan Collins, his brother Zach and his mother Courtney (Shannyn Sossamon)…