3. 'A Simple Favor' (Sept. 14)
Blake Lively and Anna Kendrick star as BFFs who have a complicated bond in this suspenseful thriller from director Paul Feig. Mommy blogger Stephanie (Kendrick) turns amateur sleuth when the glamorous Emily (Lively) goes missing from their small town. Is Emily's husband Sean (Henry Golding) the likeliest suspect? We expect more than a few twists in this potboiler.