Why, oh why, did it try to be funny? It ruined it.
This movie is jarringly at odds with itself, almost shockingly so. The concept, beginning, and end work very very well, but the rest thoroughly tries to be funny, but it just never is. It's like the whole second act is relentlessly going against its own plot and filmmaking. The stereotypes aren't funny; actually, they're surprisingly uncomfortable, and I didn't like anyone other than Bruce Dern and Will Forte because they were annoying and mined for cheap giggles. Its pleasant to look at with its nice black and white cinematography and the acting is good, but the casting is a bit odd. (Bruce Dern should be Will Forte's grandfather, not father.) If only it was a drama, it would feel far more cohesive and far less self-polarizing. From a technical aspect, it's very good, but that aspect is casting a downcast tone, not a funny "look at my silly stereotyped family's shenanigans that are milked and mined for laughs." 6.6/10, okay, one thumb in the middle, average, etc.
What other families should know
Too much swearing
Too much drinking/drugs/smoking