If you think this is anything less than 4 star you have to be a bit dull in the head. Pay no attention to these people they know nothing of what they talk about.
This movie is one of Eastwood's best. Maybe some of the acting isn't exactly top and if you don't appreciate the subtle indy style it can be help against it. Though this is thought provoking intriguing and well prepared. There are very good one liners, setups and little tid bits that put a smile on your face. Its an extremely clever and subtle movie.
Don't expect Dirty Harry this is not what this movie is about. If you want your action fest go watch T3 with the other zombies.
To me this movie was better than Changling and as such I gave it a 5 star. Up there with Unforgiven for me.