The movie moves Ms. Cyrus from where she was to more or less where she and her handlers wanted to be, and Mr. Kinnear's musician father, Steve, adds a generous measure of grace.
Here's the revelation: Miley Cyrus is a really interesting movie star in the making, with an intriguing echo-of-foghorn speaking voice, and a scuffed-up tomboyish physicality (in the Kristen Stewart mode) that sets her apart from daintier girls.