^ An interesting theory!
So, since we're talking about APOD and the Voyager intro, I thought I'd share this link!
http://apod.nasa.gov/apod/ap110315.html
I have yet to see an image from Cassini that has not floored me - but to compile the images into such an awesome video - WOW. Anyway, note the uncanny similarity between Cassini's approach and a certain part of the Voyager intro

It's almost scary, lol. And we can see how the reality differs from the CG: the rings do not appear to be that much different at close range, nor are the stars in the background visible.
And Mimas really IS the Death Star. This video proves it.
I remember reading about the process this guy used to work on these, and I'm not sure it would exactly depict the way the rings would look in a fly through like that, at least at the scale the Voyager intro is. The ship is so tiny compared to the planet that the rings should be pretty sparse relative to Voyager's scale, I believe. But the intro shows the ship so immensely large compared to the planet that it's wonky no matter how you look at it, so maybe this guy's video is correct for that scale.
I really like the true realistic look though, with no ambient light to fill in the shadows, and the lack of stars. I find it very interesting that even at that distance from the sun we still can't see stars.
Artistically speaking, I like to see at least see some stars to add visual interest to the background, but they do look better toned down rather than obvious. Although the intro shot of the sun should definitely NOT have stars! I'm pretty sure the intro still shows very faint stars, but even with the exposure dropped enough to keep the sun within range, there is not a chance you would see stars. And again, Voyager just further breaks the realism in terms of scale and lighting.
Basically, the intro would not work if you made it realistic. You have to bend the rules a lot to make it work.