2 1/2 out of 5 stars. The 300 Spartans started off painfully slow with no promise or prospect of any kind of payoff. The only thing that seemed to get me through was my memories of 300, which I suspect partially ruined the viewing experience of this telling of the story. The 300 Spartans came off like a tame series of ass-kickings until the law of averages kicked in. It made me kind of want to rewatch 300.