I worked for a motion picture caterer for six years, met many people, musicians, sports legends, movie stars, comedians. I have a three page list.
Most were a pain in the a$$,or made to be a pain in the a$$ by their many assistants assistants. There were a few that were quite down to earth and wanted no special treatment. I would rather not deal with them, just feed the crews, they appreciated all the hard work we put into feeding them great food every day in sometimes less than ideal locations.