This is a wonderfully powerful film that manages to seriously portray family drama in a believable way - so much so that I could match situations in the film to similar situations that have happened at my own family gatherings. It might not be everyone's cup of tea, hence the lower rating, but for me it was a great snapshot into a family's life and all the issues that get dragged up when so many people come together with a lot of emotional baggage.
Others have mentioned the amazing acting performances and they really do bring the characters and thus the story to life. You can't help but feel for Ellen Barkin's Lynn as she's getting picked at from all sides, both from judgement and disdain from outside her immediate family and from within with Ezra Miller's Elliot acting up the entire time.
However, this film tends highly towards the drama end of comedy-drama, so much so that it contains very little comedy at all in my opinion so I feel the genre categorising is a little disingenuous.
