Possession (1981) Today

: Her performance is legendary for its sheer physical and emotional extremity. She won the Best Actress award at Cannes for the role, most notably for the infamous "subway scene," where she undergoes a violent, fluid-leaking breakdown that feels more like an exorcism than a mental collapse.

The film is carried by two of the most intense performances in horror history: Possession (1981)

: Often overlooked next to Adjani, Neill delivers a "volcanic" performance as the obsessive, emotionally volatile Mark. He has since described it as the most extreme film he has ever made. : Her performance is legendary for its sheer

Set in the sterile, shadow-drenched landscape of West Berlin near the Wall, the story follows Mark (Sam Neill), a spy who returns home to find his wife, Anna (Isabelle Adjani), demanding a divorce. What begins as a volatile domestic drama quickly descends into madness. Mark discovers Anna is not only having an affair with a "lofty weirdo" named Heinrich but is also harboring a grotesque, tentacled creature in a derelict apartment—a physical manifestation of her psychological trauma and repressed desire. He has since described it as the most