The best parts of the best movies are the stretches of seeming nothingness or tedium that are actually doing the revolutionary work of allowing you to think. Drugs can help but also you don't need drugs because the movie is the drug.
Corollary to this: loud concerts perform the same service. Stare at the stage until you don't see it anymore, focus on the music until you don't hear it anymore, and disappear into yourself until you are all alone in the crowd. Works better the closer you are to the stage. Eliminate mediation and drink directly from the firehose