Horizon is watchable and even enjoyable in parts. The cinematography was well executed, a visual feast in places, and there were some interesting story arcs. However, I've never seen a movie so messed up by atrociously bad editing. Several times while watching I found myself wondering what the hell was going on. Had I missed a scene? How did we get here? Then it really goes haywire towards the end without even referencing what it is doing. As if someone has fast forwarded the movie.
The we come to the story and script... if you were expecting a viscerally raw portrayal of the realities of the old west similiar to Cormac McCarthy's 'Blood Meridien', you'll be sorely disappointed. Horizon is more akin to 'Little House on the Prairie'. Some of the dialogue and interactions are embarrassingly mawkish. Your sense of credibility is stretched to breaking point.
After you've finished watching Horizon, and someone who hasn't seen it asks you what it was about, you're likely to scratch your head and say, 'Er..........'.
I get the feeling Costner has bitten off more than he can chew with this production. He seems to have aimed for 'the western to end all westerns'. In my opinion, he's fallen far short of that. I hope the remaining 'chapters' save the day but I wouldn't bet on it.
