Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ruffalo as the Hulk, genius!

I was wondering how Mark Ruffalo was going to fit that character, and it was a hit with me. I love Robert Downey, Jr in anything, and he is just great as the "nutty genius", whatever costume he puts on. I believe everyone did a stellar job in this movie. I will watch it again when I have the time. I will watch something as many as four times over before I get my "fill" of it...so I will see how many times before I am done with this one!