Because I subscribe to Netflix, I will order movies that I'm not real sure about. Some of them I've never even heard of. But something, somewhere, will cause me to put the movie on my list. Most of the time I'm happy with the movie. Sometimes, not so much. Spartan is one of the latter.
The plot idea wasn't bad. But the acting was. Val Kilmer starred, and just wasn't very good. Throughout the movie I wondered if I should blame him or the director.
I'm not a movie reviewer for a reason. I'm not very good at explaining why I did or didn't like something. But I do know that Val Kilmer can do better.
Put this movie on your "watch it when there's nothing else to watch" list.