I didn't go to this movie with high expectations. I love the first 3, and I always get nervous when they make another. It is hard to live up to great expectations. However, this movie, while not as great as the first 3, was very entertaining. The story line was definitely science fiction, and not quite believable... Surviving a nuclear blast... But it's Indiana Jones, Harrison Ford (not quite what he used to be but still great), and entertaining. I would recommend it.