I disagree. This movie is a mess.
Lindsay Lohan is miscast as the lead, and displays little if any acting ability in this film. The main character needs empathy, and instead, you find her grating and replusive. Lohan spends the entire movie in full-on brat mode.
Fonda fares better, but her limited screen time, and under developed character has you scratching your head. Is she set in her ways? Why does have such a hard time with her own daughter, yet somehow manage to sort of get along with her granddaughter?
Felicity Huffman throws herself completely into her role, but her character is mostly pathetic when not yelling at her daughter or mother.
Outside of being miscast and weighty material, and believe me the material is heavy, the director on this film is all wrong. Garry Marshall does better with lighter films. This story has indie written all over it.