Katie Holmes and Adam Sandler at Home on World's Largest Cruise Ship

Invited guests on a preview cruise of the newest world's largest cruise ship, the 5,400-passenger Allure of the Seas, got unexpected glimpses of Hollywood A-listers. Yes, that was Katie Holmes and adorable little daughter Suri Cruise that AOL Travel News spotted on the ship's merry-go-round, and Adam Sandler catching a close-up look at DreamWorks characters including Shrek.