There are loads of movie themes, some of the most notable ones include the James Bond theme, Star Wars theme, Harry Potter theme, Rocky theme, Jaws theme, Ghostbusters theme and Indiana Jones theme.
In close second place for me is the Harry Potter theme which I adore, I get a chill whenever I hear it, John Williams did an incredible job. My personal favorite though is the Pirates of the Carribean theme. I think it's perfectly suited for the films and I think it's a beautifully composed piece of music.
What is your favorite movie theme?