I've heard almost every soundtrack that Jerry Goldsmith ever composed and I'm sort of in the industry of film-making (something that made me listen to many soundtracks, composed by many different composers) and I's like to say that "Innerspace" is one of the most amazing and magical soundtracks I heard.
The soundtrack is a combination of pure action score as well as pure adventure score put together with a bit of a romantic score now and then.
There aren't many soundtracks that make you want to be in the film while listening to them, but I can say for sure that Jerry Goldsmith made a one way ticket to movie world.
So if you're one of those people who lie down on the bed, play a soundtrack, close your eyes and imagine your in the movie... This soundtrack is a must!