Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Picture Reduced to Freddy Kruger in Space. Sad

This was one of the best science fiction films I had seen in years with great writing, good acting, super visuals but no!!!!! they couldn't leave it on that level. The last 30 minutes are a heartbreak. I don't know who made the writers or director change the ending, I know this can't be what they had in mind. This film bordered on truly great but as soon as the mad slasher was thrown in to the plot I started thinking about supper or what I was going to do the next day as I lost all interest in the film. What a waste with an ending so bad that you feel you had been sold on a great car and it turns out to be a lemon after you bought it. I expect Friday the Thirteenth movies to be boring, predictable, for teenyboppers so I am not disappointed. This film had so much promise so the junk at the end disgusted me with the extreme trashing of talent. Pathetic.