I'll never forget a chance viewing of this film in 1970 in a theater in Akron, Ohio. I had no idea what it was about, or who Coppola and James Caan were. I was just trying to kill a few hours in a strange town, but when I walked outside at the conclusion of the movie, I was speechless. Mesmerized, Enthralled. I have the DVD now but never watched The rain People again, in case my feeling about the film might have diminished. It was a 10 then, and it will remain so with me. PS- Duvall was also great, even back then. Turns out that he and Jimmy Caan and Coppola all lived together in their penniless early careers.
Review of The Rain People
