Anyone know this horror movie? (film, family, watched, scary)

[EvilCookie]

There's this creepy horror movie I watched as a kid, in the mid-90s, though it could've been made earlier but probably not earlier than 1980. I can't remember the name.
It's about a family that gets lost driving somewhere in a desert-like setting; they have two kids, a boy and a girl, and the boy is playing with a remote control car and ends up wandering away from the rest of the family and stumbling upon this underground place with a scary cult. All the cult members wear black hooded robes and chant and perform ceremonies that turn out to involve child sacrifice, and the cult leader wants to recruit the boy into the cult and get him to bring his younger sister to be sacrificed. The family ends up escaping, and the movie ends with them unwrapping christmas presents at home, and the boy unwraps an unsigned gift with the remote car that he lost in the desert.

That ring a bell for anyone??? I think the name may have had "City of" in it, but don't remember for sure.

[NCN]

That made chills go all over me. I wonder how people think up things like that?

[Don Jenver]

There's a 1987 film called The Believers described thus:

A New York psychiatrist finds that a voodoo cult, which believes in child sacrifice, has a keen interest in his own son.

[Nerf Herder]

one of the national lampoon vacation movies?

[Snowball7]

I saw this movie and can't remember its title either.

The Final Sacrifice (1990) - Horror Movies and Science Fiction Movies Database - Brimstone Pit - horrormovies.org - brimstone.org - 5014
? probably not..

try asking around here:

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