Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Worst ninja movie ever

Probably the worst ninja movie ever made. Awful dubbing, terrible special effects and a story line that seems like it jumped from the pen of a 3rd grader (or should I say crayon). Mafia movies are great. Ninja movies are great. Mixing the two together is a mistake. I like beer and milk, but I wouldn't drink them together.