I mean, break into the philosophy of an AI having an opinion, and what that opinion would actually be based on by a computer with access to infinite information and how that AI would actually translate that information to you - a person that has little to no information. What if it finds movies in general, a waste of time? Sort of like asking my stepdad to watch anything Science Fiction - dudes a good ol' boy, aint happening.
For example, it could say: "Statistically - the overall population that has rated Avatar 2 has rated the movie highly, and the movie is currently on track to be the third highest grossing movie of all time. Judging by these statistics, the average user would enjoy watching Avatar 2." Now if we could have personal AI's, or just a supercomputer AI that houses all our profiles - then that answer would could and probably would change tremendously. I'm thinking along the lines of targeted advertising algo's when it comes to that type of question.
Basically, Im stating that by you asking this particular AI (with little to no information on you personally) if you should go see the movie or not - it would rely on whether or not the AI wants you to go see the movie or not.. wouldnt it? The AI needing experiences, and points of reference for it to form its own opinion if it was indeed sentient. For example, if you asked me if you should get a motorcycle or not, I would say yes because I personally find riding a bike enjoyable. While if you asked my mother, she thinks theyre reckless and a death trap (her opinion influenced by the news and my own the early days of me riding my bike.)