What a fun movie! I have wanted to see this for so long, mainly due to that awesome artwork. To me, that poster is like a perfect distillation of everything fun about horror movies. Often, when you've wanted to see a movie most of your life and it's mostly based on something like artwork, it's a recipe for disappointment, but not in this case!
Likeable characters, one of my favorite horror tropes ("let's spend the night and 'party' in this cemetery/funeral home/shopping mall/wax museum/funhouse, etc...” science museum in this case), fun and creative low-budget effects, a quick pace, a pretty unique villain (an evil genie), it's just tons of fun all around. Highly recommended for horror fans!