The biggest problem with The Dark Tower movie is that when it ends, you don't feel the need to see more. Unlike the epic books that inspired it, the movie is streamlined to be one complete story. Hypothetically, this should be a good thing. But with The Dark Tower, that process removes any gravitas needed to make us care about what's happening. The end results are a ho-hum 90-minute fantasy, peppered with action and mythology, but more forgettable than just plain bad.