Communion

On December 26, 1985, Whitley Strieber has a strange nightmare. In the following days, plagued by painful headaches, his behavior becomes increasingly erratic. Later, under hypnosis, he realizes that his dream was not a dream at all.

Communion is a 1989 drama biography movie directed by Philippe Mora, starring Christopher Walken, Lindsay Crouse, Andreas Katsulas. It holds an IMDb rating of 5.5/10 from 8,824 votes and runs 1h 47m.