Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Best Movie of All Time

Perhaps no movie in history has the staying power of "Casablanca." It's as good the 100th time you see it as it was the first. This tale of love, betrayal, heartache and redemption features some of the most iconic moments in cinema history, the most memorable lines ever spoken on screen and a cast to die for. It belongs in everyone's video library