I put off watching this movie for some time, for the simple reason - it sounded like a slightly spoof or comedy sci-fi/western due to the name. In fact this is nothing of the sort (thankfully) and is actually a very decent shot at combining typical western fare with an alien element. From the first (quite violent)and bloody fist fight you'll realise this isn't silly kids stuff. Too often these days, a movie like this would have been dumbed down and littered with comedic or slapstick scenes. The story such as it is, is basic, but believable. The way the movie plays, at no point do you question the believability of having cowboys fighting aliens with their obviously superior technology. It was something that concerned me before watching but it works out right and makes sense. No issues with any of the acting, or the effects. Overall a decent effort, worth watching especially for sci-fi fans.