Movie poster for “A Simple Favor.” Blake Lively as Emily stands upright with her left hand on her hip, posing with a martini glass in her right hand. Her expression is confident and proud, and she wears a modest retro teal A-line dress with large light pink flowers. In front of her, is Anna Kendrick as Stephanie seated in side profile on a teal block with her knees bent to 1 side. Her right arm rests on her right knee, and her left arm extends behind her, arching her back and pushing her chest forward. She has a curious expression on her face and wears a tight black low-cut sleeveless dress with leather detailing. The graphic background is a color block of triangles in light pink and shades of teal meeting at a point directly behind them.The title appears midway down on the left in thin, black sans serif letters.