The beginning of the movie was great. But it became unrealistic afterwards, jumping from one scene to another without reason or storyline flow. Worst example of this is when they are about to be hit by a perilous sandstorm, but it lasts all of 20 seconds and then it's over and there is a group of an Indian Tribe traveling through as if nothing happened...What??? Storyline had so much potential if these scenes made sense from one to the next, but still okay to watch.