In addition to what others have said, there are a couple of other small considerations regarding print v. slide film.
Kinda geeky so stick with Me.
First, read this.
Almost every method of recording an image will do so in a slightly inaccurate manner. Some manufacturers of equipment use this to their advantage and some just have to live with the realities of what they're dealing with. As a photographer, you have the choice of deciding which is best for your particular project.
One of the most common print films in the U.S.A. is Kodak Gold. It has a slightly "warm" tone to it and really makes for very nice photos of what most people take pictures of -- that is to say, faces.
Kodak also makes a very good slide film that also has a slightly warm tone to it called Kodachrome. Without a doubt, more fashion & beauty magazine covers have been shot with Kodachrome film than all other films combined. Kodachrome has one HUGE disadvantage in that it can ONLY be processed by Kodak itself, so you'll have to wait a little longer than what you're used to waiting at the one-hour photo shops! BTW, I don't recommend one-hour photo shops for anything but the most casual of snap shots and certainly not for anything of any real importance.
Back to our topic of colors -- when shooting something like a sky, these warm films sort of fight the deep blues.
Slide film that is E-6 processed, such as KODAK ELITE Chrome Slide Films will have a slightly blueish tone to them and work, in my opinion, slightly better for skies. My current favorite film is Fuji Provia, but you're going to have quite a bit of trouble finding it at your local drugstore. You might want to try Calumet Photo. However, E-6 process films can make the brown dirt below a formation look somewhat magenta. So, you may have to do some color correction after all. ;^)
All of the above said, any of these films can be scanned in and color corrected to produce outstanding magazine quality photos in the 100 ASA range it's just that if you pick the correct film to begin with, you'll have less work ahead of you.