I’ve visited Petra in 1996. The movie connection was in my mind. The vast interior where the grail was was a movie set. The actual entrance only goes a few feet in and then just a solid wall of rock. Kind of a letdown when you have the movie dancing in your imagination. That said the carvings in solid rock are awesome. Petra is considered by many to be the top place to visit in the middle east. Even above the Pyramids.
I have been there while on deployment. It was truly amazing.