To their credit, "real" does not necessarily make a good story. Making a story satisfying, and getting it to "feel" real, often are the opposite of specifically accurate in all details.

Think of the map you might buy at a gas station. Is it accurate? Are the towns and the roads really that big in comparison to everything around them? Is "every detail" represented? No. The map shows you what is important to someone driving. A 100% accurate map would be THE SIZE OF THE AREA DEPICTED ON THE MAP ... a 100% depiction of the territory. The reason you pay for the map is that its inaccuracies are tailored to your needs and it's usefulness.

Stories are the same, whether adapting them from real life or from another medium. You don't pay for a movie to be exactly like a book ... if you did the movie would just show you the printed pages. You pay for the story to be interpreted into a movie for you. The fact that this is hard is why it's wonderful when it's completely satisfying.