I started it earlier today and then after I watched the opening, I actually had to go do something and came back about 30 min later and the game exited out and now I can't seem to skip the opening which is rather long. Any help with this?

You can always save your game right after the intro, and then load it from the main menu after you run the game. I haven't been able to skip it either. To access the menu, move the cursor to the top of the screen until it changes to a pyramid, then click.