I may be one of the only critics who have a positive opinion of “Horizon:  An American Saga – Chapter 1.” It has gotten a lot of bad reviews and publicity as well. Kevin Costner, who directs, stars and co-wrote this epic tale of the Old West, looks fit as a fiddle in his role and his Western garb.  In the old days we would call him a matinee idol, but at 69 he’s aged way past that description.  This is a dream project for Costner, who believes in this scheduled four-chapter movie saga so much that he invested a...