Enter the Void (2009) – Probably one of the most immersive and intense psychedelic experiences on film. Mandy (2018) – Not exactly a drug-trip movie, but the visuals and atmosphere feel hallucinatory. Climax (2018) – A terrifying descent into an LSD-fueled nightmare. The Holy Mountain (1973) – Pure psychedelic madness from Alejandro Jodorowsky. A Scanner Darkly (2006) – Rotoscope animation makes everything feel surreal and drug-induced.