Baal
Yes, that’s Lana Turner playing pagan priestess to a horned guy wielding a golden snake and a spiked club.
It does not get more pagan than this.
The movie is “The Prodigal“, from 1955 – sort of an apocryphal take on the Gospel parable.
Pulp Gospel, if you like.
I’m currently using this picture as photo reference for a story I’m writing – I hope it inspires you too!