Eraserhead
Now, this is an experience. Quite easily, one of the most disturbing films i've ever seen, and something you can't take your eyes off of. This is probably the most digestible I've found a Lynch narrative to be, but nonetheless this left me feeling mortified. Tells a simple narrative, but tells it in such an artistically dynamic way, that you feel everything you're meant to feel. The horror of his decisions in life and his mind slowly fading away through these decisions. I'm not sure if this deserves 5 stars or 4.5, but considering this is such an intense experience, I'm giving it the former. I definitely won't think about rewatching this film any time soon, I just care about my mental health lol.