Takes Time.
It's best to let time take the film in, it simply can't disappear because it's much too powerful to fade into obscurity. I believe that in the years to come, many great artists will take inspiration from the film and credit it for such, Matthew Mcconaughey already claimed it's one of his favorite films and look how well he revived his career.
http://www.rottentomatoes.com/m/dallas_buyers_club_2013/news/1928869/five_favorite_films_with_matthew_mcconaughey/
"We may be through with the past, but the past ain't through with us!"