Sorry this is a late reply- I don't know if you even need an answer anymore. I did the CP this past Spring with a role in costuming, I was also a theatre major. It is not a difficult role to get in, however it is more difficult to get entertainment costuming vs. operational costuming which you don't find out until you arrive. While it may not be as easy of a role to get as say housekeeping where they're constantly asking people to be, it is about the same as any other role.