Baz Luhrmann's movies have great soundtracks (The Great Gatsby, Moulin Rouge, Rome & Juliet)... but for me, I've always thought that Forrest Gump had a soundtrack that just really fit the movie. Also, Great Expectations introduced me to a lot of great music. (Reservoir Dogs and Pulp Fiction were also pretty great.)
Bee likes sweeping scores: Jurassic Park, Gettysburg, Last of the Mohicans ("so good"). Also: Philadelphia.
Which movie soundtracks have you loved the most?