I wish I could agree with the high-scoring reviews, but I cannot. This movie seemed flat, monotone, mildly entertaining. The lead was perfunctory...another disgruntled teen who desperately wants to get out of her home town and fly to the East Coast "where there is culture". New Hampshire and culture? Hmmm...
Lady Bird clashes with her mom (Laurie Metcalf...who deserves 10 stars by herself). So, a teen clashes with her mom...wow...news flash.
Dad loses his job...and seems to be just fine with that, even though they are running out of money. Weird.
The supporting cast seems to be chosen to complete a requisite menu of characters: the overweight but beautiful-inside best friend, the gorgeous and wealthy but shallow new friend, the handsome but...surprise...gay boy. Somehow this lack of originality does not drive a strong story line.
The crash and burn ending is, well, the only twist in this story...so, back home she goes, and realizes she really does love Sacramento. Perhaps Sacramento is a metaphor for almost every town in America, but the story never hints at that. So, sorry, this one just did not resonate with me.