Jaws
This is one of the cases where I don't know what to write. "Jaws" is a masterpiece. The film is so well directed by Steven Spielberg and John Williams's score is one of the best and most iconic in film history. The cinematography and editing are great and the framing always lets you know what the characters think. In general, all characters are very well written and extremely personable and act understandably. In addition, the film has a very good pacing and is never boring, in fact the quiet scenes and moments are among the best. The shark also looks great and is used perfectly. "Jaws" is just a perfect film.