Must admit that The Movies game has potential to be very good, saw a trailer for it a while back and it looked really fun.
Though i wonder how much freedom you have?
Rollercoaster Tycoon 3 also looks good, and it seems that they're adding more than just a 3D engine to it. Varying guest ages, groups of guests and fireworks the go in time with your mp3s
I remembere hearing somewhere that Sid Meier makes some of his games almost entirely by himself, i don't know whether its true or not, but if it is it's damn impressive