Sound which could be made by a film’s Foley Artist could include: footsteps, punches in a fight, glass breaking and doors opening and closing.
A film that uses a leitmotif to enhance meaning for the audience is Jaws. The use of this leitmotif means whenever the shark is approaching, the audience are aware before the characters are, adding to the tension of the scenes, as the audience know something bad will happen.
Another film that uses a narration is Bladerunner, in the opening scene. It helps explain the world and context for the audience, as well as setting up the characterisation of Deckard.
One of my favourite film soundtracks is probably the Harry Potter films soundtrack by John Williams who has produced other soundtrack such as Starwars and Jurassic Park. It appeals to me so much because it sets the tone and atmosphere for the magical setting, as well as being nostalgic.