Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Who is writing these positive reviews?

Walter Matthau as Albert Einstein is quite a lot of fun.But the rest of the movie was just terrible. It was silly, predictable and dull. The jokes weren't funny. The script was terrible. We had five people watching. Three fell asleep on the couch and the other two (including me) kept forcing ourselves to watch hoping it would get better. Which it didn't.For Walter Matthau comic movies, consider Hopscotch or the Sunshine Boys! For serious movies with Matthau, check out Mirage, which is awesome.