Hello, new member here, if I may interject regarding the Dreamworks and Disney "parnership."
I don't see much more than just an investment for Disney to make some extra cash. One of the founding members of Dreamworks, Jeffrey Katzeneurg was a high up in the Disney food chain, I believe 3rd in command behind Eisner and Frank Wells. Katzeneberg was promised the presidency by Eisner if Wells were to retire/pass away.
When Frank Wells died, Katzenberg was overlooked, he left and started up Dreamworks. Katzenberg and Eisner did not have the greatest working relationship, and although Eisner no longer works there, Katzenberg has had a bit of a grudge against Disney since.
So, we are more likely to see Spielberg movies in the parks that are not involved with Dreamworks. Unless this partnership turns into a regular working partnership and Disney buys them out (Pixar all over again?).