Having worked in Guest Relations and Global Marketing, I can tell you that Disney has ALWAYS (at least in the last 12-15 years) issued VIP tour guides and their guests on tour a special "Priority Entrance Pass." This allowed VIP guides to take their guests on various attractions, without being questioned by various cast members or having to wait in a queue. However, without this "PEP Pass," as they call it, attractions cast members are told not to permit VIP guides and their guests in the Fastpass line or backdoor entrances. A good tour guide, however, has ways around this.
Also, you don't have to be particularly famous in the United States to get the PEP Pass. Celebrities in other countries are often issued one, as they might be exceptionally famous in China, France or elsewhere. I remember I saw a list once that denoted three reasons why somebody must ALWAYS be issued a PEP pass, I forgot two of the reasons, but one was definitely, "Guest and/or their Family under the protection of the US Secret Service, US Marshal Service and/or the Florida Highway Patrol."
Disneyland has had a Fastpass version of the same pass (printed on Fastpass card stock, instructing cast members to leave the pass with the guest, rather than collecting it), which they issue to guests and tour guides. Being Disneyland in celebrity-heavy CA, many high-profile guests do not get VIP tours, bur rather are just issued these passes to expedite their day and make it more enjoyable. The majority though, are still used only for guests on VIP tours.
