Disney superstar Miley Cyrus leaves the comfortable confines of 'Hannah Montana' for a walk on the wild -- or at least PG-rated -- side, stepping into her first grown-up (sort of) role in 'The Last Song,' Disney's screen adaptation of novelist Nicholas Sparks' teen romance tearjerker.

And from the look of the movie's trailer, Miley's charisma has enough energy to light up a small town, but what about her range as a leading lady?