Yup, there is a CM or two with a clipboard and a sign saying something like breakfast reservations. Look for them and they will probably let you in around 8:40 or so. When we went they were near the tunnel on the monorail side.
I remember the special gate being to the right of the turnstiles with a clearly mark sign. I am sure they move this around from time to time but this is where it was about 2 years ago...smjj