Not soundtracks - but the tune/s you associate as being the film's theme.

Jurassic Park (there's a few catchy rather than emotional ones, like Star Wars, Great Escape, Indiana Jones, bond and MI etc.. but this one is my favourite from the famous quirky ones)
Platoon
The Magnificent Seven
Braveheart
Lord of the Rings
Midnight Express
Titanic
The Godfather
An American Tail