The Gate (1987) Review

This story centers on three teenagers, Glen (Stephen Dorff) who has a hobby collecting toy rockets, his sister Alexandra (a boy crazy girlie girl) and next door neighbor Terry (nerdy awkward kid who hates his dad after his mom died). They discover a deep hole in Glen's backyard one day while his parents are out of town and decide to investigate.  For no particular reason, ancient demons decide to make this their passageway to take over the world.   The little demon monsters start taking over the house.  One of the teens realizes that Terry must have opened the gate while listening to his demon rock album and saying some enchanted words and then later throwing a dead animal ("sacrifice") into the hole.  They then come up with a plan to try to kill the demons.  The movie is kind of silly but still entertaining. It won a couple of awards for young actors and for the film itself.  They actually came out with a part 2 to this.