“When I was 5 (now 35) I saw a scene from a movie or tv show that gave me nightmares for years. There’s a room made entirely of cement with a man made river flowing through the middle of it. A man is strapped to a chair with his eyes taped open. The chair is slowly flipped over so that just the top of his his head up to his taped open eyes are submerged in the fast running water. It’s not Requiem For A Dream. Help.”
UPDATE: In the meantime I managed to find the movie on YouTube, quickly scanned through it, and although there is some sort of “water torture” in the movie, but it does not look exactly like in the question, so probably this is not the right movie.
Just a guess, according to IMDb there is “water torture” in the movie: