Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: gave my 5 year old nightmares

the big explosion and the fire almost burning up the Russian man kept my son up till midnight. Good for an older child, though. Nothing really crude, that I can remember, and they didn't speak as fast as in many of the Disney movies. My son hated it and I hated the nightmares he had because of it.