Sometimes, an opening is so strong that you immediately know you're in good hands. The new film "Thanksgiving" begins with a Black Friday shopping event. A local business owner hires minimal security, then forces disgruntled employees to chip in at the last minute. The tycoon's thoughtless daughter breaks into the store--several minutes before the official countdown--because her friend needs a new lipstick. The masses witness this obnoxious move--and a volcano of fury erupts. The surge of the crowd results in several deaths. A shard of glass inserts itself into one human neck. A braid of hair gets stuck in the wheels of a shopping cart, and thus a piece of scalp "frees itself" from a head. One shopper really wants a free toaster oven, so she snatches it from the hands of a corpse. The writer is saying something here: "I promise to deliver in the middle sections, and in the ending, as well." So: you get an interlude in which stainless steel ...