HANUKKAH * USA 2019 Dir: Eben McGarr. 106 mins A Jewish slasher movie modelled partly on IT’S ALWAYS SUNNY IN PHILADELPHIA with straight-from-the-horror-convention casting and composer Harry Manfredini and stunt co-ordinator Kane Hodder among the credits. It opens with a long-haired, cadaverous Sid Haig as a notorious serial killer who…