Is there any connection (i.e., in terms of ownership or subcontracting) between Disney and Carnival?

Incidentally, I recently discovered that nearly every major cruise line around is a partly- or wholly-owned subsidiary of Carnival. Kind of blew my mind.

I haven't found an ownership connection between Disney and Carnival. Here (http://www.cjr.org/tools/owners/disney.asp) is an as-far-as-I-know complete list of everything owned and operated by WDC. And here (http://www.carnival.com/CMS/Static_Templates/Vacation_Interchange_Privileges.aspx) is a page from Carnival's Web site showing the other cruise lines they work with or own outright.