This film had a woman, possibly a princess, who is to be sacrificed to a god/statue. The hero and his group of men are on a mission to rescue her.
The group of men have to go through a cave with a massive spider inside. Towards the end, they interrupt the sacrifice and the god/statue comes to life and morphs into a disgusting creature. A fight ensues and the hero eventually wins.
I watched this on television in the late 90s, I came in about halfway through the movie. It seemed to be older, created before the 90s at least. I thought it might have been a Sinbad film but it is not.
Thank for the help!