I love the soundtrack from 2001, A Space Odyssey, but I don't think it fits your criteria since it is a compilation.
Ernest Gold - Exodus and Its a Mad, Mad, World.
Marvin Hamlisch - The Sting(Scott Joplin's original), Sophie's Choice
Henry Mancini - Breakfast at Tiffany's, The Pink Panther
Elmer Bernstein - To Kill a Mockingbird, True Grit,The Magnificent Seven
I know that some of these are oldies, but so am I.
I am also a fan of TV show themes such as Alfred Hitchock's The Funeral March of a Marionette.