Laney (Sarah Silverman) is part of what appears to be a wonderful family; a doting husband, two lovely kids living in a large, beautiful home. Those thoughts led me to the truth of it all as, Laney traveled into her personal abyss. The surprise is Silverman's performance. Best known for lighter, comedic fare: "Who's The Caboose?", "School of Rock" and "Wreck It Ralph", Silverman delivers an award worthy performance. I was fixated on her talents displayed here. Who knew that a primarily stand-up comedienne, could play such a difficult role so convincingly. Josh Charles and Thomas Sadowski are adequate in their roles, but this is Silverman's movie. Strictly for adult viewing and highly entertaining for those of us who are able to endure a dark drama, I do recommend "I Smile Back".