If you believe that you are meant to see every movie sober, than you do not understand how film making works. While there are a great many films, most of them, really, that do not need any added incentive in the form of chemicals, there ARE movies you will watch sober than you will take very different things away from if you ever watched under the influence. Drugs, and in some cases, psychedelics, are a huge muse for creative souls, and sometimes drug consumption can cause you to find things in a film that a sober mind would just as easily ignore. Some of the filmmakers of our time are very much aware of this, and for that reason, these six movies are not truly seen how they are meant to be seen until they are seen on drugs(some more than others, obviously). What drug you are on when you see these films is completely up to you, but I can safely say hallucinogens are the key to unlocking a few these films and their deepest of meanings.