Boyhood is one of the most critically acclaimed movies, ever. Artistically, as a project, there has been very few with such a grand vision, and even fewer that have pulled it off. 12 years in making, the movie follows the story of a boy as he grows up from age 6 to 18 - with all characters playing the same part, and growing up together.
But it is not only the concept. The story is simple - the characters, are no superheroes or specifically special; but it manages to stitch together an amazing story, with effectively everyday events. It is a story of a modern family I suppose - divorced parents, remarriage, step siblings, moving homes, changing friends, changing environments (from cellphones that could only text to smartphones for example) and changing music.
As an artistic endeavour, it is amazing and deserves all the accolades it has received.