Hmmm...I sure hope there's one at POR.
We've been to the one at Fort Wilderness campground and we thought it was awesome! Chip & Dale came out for hugs/pics/autos with the kids (adults, too!), there was a sing-along, followed by a movie. To make it even better for DH, there's a snack shack in the back that sells all kind of yummies for the kids.........and ice cold beer for the adults!
If you're at WDW for a while and can spend an evening relaxing instead of going into a park, I would suggest going.