My fears after hearing of the PG-13 rating were correct. I won't give the plot or storyline away, but lets just say the violence in the movie won't scare anyone over 6 years of age. The way the story wraps up is completely unbelievable and dumb, of course at the very end they leve you with the impression there will be a AVP2.
I wouldn't give this movie an F, more like a D+ or C-. 1.5 stars out of 4. It has it's moments, but they are few and far between. I recomend waiting for a rental or for it to hit cable. It's not worth the ~$8.