No matter what else I may write here, I do not want you coming away from this believing that Lawrence Kasdan's The Big Chill (1983) and Shawn Levy's This is Where I Leave You (2014) are the same movie. OK -- they both involve the reunion of a group of 30-somethings who were once close and have now drifted apart. Both movies use the death of another member of the group as the catalyst for said reunion. Both movies isolate the group in house. Both movies involve infidelity and old flames. One of the characters is desperate to get pregnant and turns to someone other than her husband. At some point in the middle, they get high.
But they are by no means the same movie. After all, one of them has Jane Fonda.