A famous example of Spielberg working with the same professionals is his long-time collaboration with John Williams and the use of his musical scores in all of his films since The Sugarland Express (except Bridge of Spies, The Color Purple and Twilight Zone: The Movie). One of Spielberg's trademarks is his use of music by Williams to add to the visual impact of his scenes and to try and create a lasting picture and sound of the film in the memories of the film audience. These visual scenes often uses images of the sun (e.g. Empire of the Sun, Saving Private Ryan, the final scene of Jurassic Park, and the end credits of Indiana Jones and the Last Crusade (where they ride into the sunset)), of which the last two feature a Williams score at that end scene. Spielberg is a contemporary of filmmakers George Lucas, Francis Ford Coppola, Martin Scorsese, John Milius, and Brian De Palma, collectively known as the "Movie Brats". Aside from his principal role as a director, Spielberg has acted as a producer for a considerable number of films, including early hits for Joe Dante and Robert Zemeckis. Spielberg has often never worked with the same screenwriter in his films, beside Tony Kushner and David Koepp, who have written a few of his films more than once.