Al Gough, exec producer on Smallville, told Kryptonsite: "It's one of the things that, you know, we went down to Sydney in May [Miles and myself], and met with Bryan and Mike and Dan, and we talked about the Fortress [of Solitude], and we both agreed that whatever sort of looks of these bigger things, whether they be the Planet or the Fortress, we should key off the original Donner movie. Which we planned to do anyway. It's not like we were going to put the Fortress in the Jungles of Peru. We had always planned that the end of high school graduation, Clark would be walking across the glacier to the Fortress. So we'd always planned to do that anyway", he says. "The movie has been great. We sort of keep each other abreast of what we're doing, so that there are no egregious mythology clashes".