I agree that this movie was pretty predictable, and I didn’t find it laugh-out-loud funny (although, seriously, this could be partially owing to my hearing. Still, I like the lead actresses so much (and felt I really hit the jackpot during the Thompson-Lithgow scene) that it felt worthwhile.
And it did highlight important issues—not only minorities, but women v. women. Overall, this was an intelligent and likable film.