The Graduate (1967)
Based on the 1963 novel by Charles Webb, the Graduate film does not stray too far from the book, in plotline or screenplay, but again once you can put a picture to a story, it sometimes comes out way better than anything you could have ever imagined.
Source: YouTube
This especially considering the fact that the stars in the movie included the likes of Dustin Hoffman, Anne Bancroft, and the ever so iconic music duo Simon and Garfunkel.