"Boyhood" is original in that it filmed over a 12 year period, with the same actor growing up. The story line goes as "The life of Mason, from early childhood to his arrival at college." -IMDb.
It won 1 Oscar in 2015 for "Best Performance by an Actress in a Supporting Role" for Patricia Arquette.
It is also rated a perfect score of 100 on Metascore!
This is definitely worth a watch :)