Melissa McCarthy, Chris ODowd and Kevin Kline are perfectly cast to add a touch of humor, and the acting chops to carry off the depth of what grief and depression can do to relationships. This is done without a lot of schmaltz or cliches, the blend of anger, sadness and helplessness are really well done, without preaching and with the hard edges softened with just enough humor to soften it, Is it the best movie ever? No? But I think this movie will resonate with those that have dealt with different aspects of heartbreak and depression. I think that's why there is such a wide range of ratings.