“A Simple Favor” (** out of four) was a muddled story about a vlogger (Anna Kendrick) who meets a wealthy free spirit (Blake Lively) and becomes gradually obsessed with uncovering the reasons for her disappearance with clues pointing in all different directions. Both Kendrick and Lively do what they can with hazy material but film meanders and can’t decide whether it’s a screwball comedy or a Hitchcock thriller so simply enough- it becomes neither. Clever final third can’t save it. Disappointing result from “Bridesmaids” and “Ghostbusters” writer/director Paul Feig