In “Sinister,” from 2012, a true-crime writer (Ethan Hawke) moved his family into a house that had been the site of a multiple murder. In the attic he discovered grainy home-movie-like films of other killings. He also met a pagan entity, Bughuul, who in whisking the souls of children to a nether realm, creates minions who do his homicidal bidding. Spectral killers host a snuff-film screening for a friend in “Sinister 2.”The Big Picture on the Mini-Movie in ‘Sinister 2’ and OthersAUG. 19, 2015 The longhaired, pale-faced Bughuul (Nicholas King) returns in “Sinister 2,” to terrorize 9-year-old twins, Dylan and Zach (the brothers Robert and Dartanian Sloan), and their mother, Courtney [...]