Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This movie is silly.

The special effects are great but the story is really dumb. Who would be smart enough to build an interstellar space ship and then hire a crew of dorks to go on the mission? What kind of alien would be advanced enough to create humans and when we make contact with them just give a grunt and rip off someones head? Don't waste your time with on this one.