I'm having a hard time getting past the scientific reality that an asteroid hit Earth 66 million years ago, and this movie is set a million years LATER in 65. The asteroid caused the extinction of 75 percent of all life on Earth - plant and animal, including the dinosaurs, and it took a very long time for things to normalize afterwards. If you are making a science fiction movie, it should have some science facts. Maybe they should have consulted with an earth scientist before naming the movie!
Just my opinion.