Why wouldn't you? Maybe he made an interesting movie that you'd like to see or something. So you'd give him money in exchange for being allowed to see the interesting movie. Both win.
In this transaction, what the heck do you care what the guy who made the movie thinks about whether you're going to hell? No skin off your nose. (Or is the problem that you believe him?)
There's a lot of guys who believe and/or do wacky things that I'd "give money" (in exchange for a good or service) to. Sticking with movies, Roman Polanski is a damn jerk but I thought The Pianist was quite good, not to mention Chinatown, and Rosemary's Baby which I get a kick out of.
More generally, even outside of the world of movies, even when you go down to the local 7/11 and buy a candy bar, you're giving some stranger money, and for all you know, maybe he thinks you're going to hell.
who cares?