Little Miss Sunshine is a quirky, funny, sad, laugh out loud film. About families, growing up, achieving your dreams, or not... Mark Kermode (curmegeondly but brilliant BBC film reviewer) gives it a mixed review (forward clip to 01:26:39), calling it a "strange, little widget of a movie" - his main contention being that it needs to be more harsh about the main subject - the whole beauty paegant thing. But he does admit that there are individually good things about it...
I think it is just a wonderful film - go rent it :-)