May not be appropriate for tweens. There is entirely too much kissing for my taste and the more sensitive viewers may not like it because of an unexpected twist, which I won't reveal. The Last Song is a powerful movie. Few movies celebrate REAL music, not rap or pop, but the instruments on which actual music was founded. I did think it was a bit unrealistic that Ronnie got accepted into that prestigious of a music school - she didn't even apply. If she did the movie didn't say it. There is a lot of crying, a lot of kissing, a lot of hugging. One violent scene. One scene shows Will and Ronnie hosing off after a mud fight. Ronnie stuffs some padding down a dress she tries on.
Overall I would recommend this for 12 or 13.