Can you really imagine Supercal - in which the main gimmick is the spelling - being choreographed in a way that does not spell it out? How else would you do it?

Well, I don't think they do the spelling gimmick in the movie, a version that works much better, imo. I think the spelling gimmick is incredibly stupid and tacky.

I've seen Mary Poppins twice on Broadway so far, and I have the program which I could scan, but it honestly won't help. Last time I saw it I also went to a workshop where Brian Letendre (who plays Neleus) taught us the Supercalifragilisicexpialidocious dance, and it's a little bit different than what it has in the program. In the Broadway dance, you don't spell out every letter at the end because it gets so fast, but in the program it has the actual letters because its a picture and not moving. (duh) Besides just learning the letters the transitions are pretty important too, so if you really wanna learn the dance, either take the workshop or study those videos on youtube!