Is there a movie that is not a box office success that you end up loving?

Just because a movie didn't break even in the box office it doesnt mean its a bad movie. You may not believe it but some of the so called Legendary movies are box office flops yet they were more remembered than the Box office winners of the year where that movie got released. Some movie just got released on the wrong time or way too ahead of its time.

Is there a movie that is not really a winner in the box office that you actually loved? Oh also is there a critics and box office winner movie that you end up hating despite of everyone loving it?