Even though this movie is R-rated, it is probably appropriate for 13 years old+. If you love rock'n'roll, you will completely adore this movie, as I do. There is some sexual innuendo present and part-naked bodies (genitalia never shown). After effects of drugs and alcohol are present and for most of the movie, the characters are smoking cigarettes (most people smoked cigarettes then though). The language was also not very good, but again, it is appropriate enough if the teens/adults are mature.
GREAT MOVIE and pretty funny at some parts!