What do You think about The Day It Rained Forever (1988)?
"The Long Rain"“How much farther, Lieutenant?”“I don’t know. A mile, ten miles, a thousand.”“Aren’t you sure?”“How can I be sure?”“I don’t like this rain. If we only knew how far it is to the Sun Dome, I’d feel better.”“Another hour or two from here.”“You really think so, Lieutenant?”“Of course.”“Or are you lying to keep us happy?”“I’m lying to keep you happy. Shut up!”--“How many million years since the rain stopped raining here on Venus?”“It never stops raining on Venus. It just goes on and on
—Kerrif