The "Sound of Thunder" by Ray Bradbury is about a rich businessmen that goes back in time to a safari to hunt dinosaurs. In both of the versions the setting is a safari. Also Travis is still the leader of  the hunt. The book and the movies have the same idea. One of the differences is that in that in the movies they shoot the same dinosaur many times, but in the book they shoot the Tyrannosaurus Rex once. Also in the book the changes that result from stepping off the path takes time to occur.In the movie the results happen when they return.