Harry Potter and the Deathly Hallows Trailer- individual work

Harry Potter is series of 7 fantasy novels which started of as being a film which may interest children more because it involved magic and wizard however, as the interest grew from a wide range of age groups the characters in the film started appearing as teenagers or 'young adults' which then afterwards made the film a more teenager film or audience within the age group between 12-21 so it wasn't too childish but not too complex for the young people as well.