Parents Guide for
An Awfully Big Adventure (1995) More at IMDbPro »

Although most certificates allow children aged 15 or even 12 to watch this film, I think parents should be aware that the sex scenes are more shocking than the average, since they involve incest. Even if the fact is not obvious at the time, it becomes evident at the end, and not all teenagers are mature enough to handle such concepts. In my own personal opinion, I would give this film an 18 certificate.