You need to go to the character breakfast line and not the regular lines at the front gate. I would also get there by 8:40am (at the latest) so you can get to the restaurant BEFORE they start letting everyone else in the park to the rope at the end of Hollywood Blvd.
As for FP's, in theory, one member of the party should be able to leave the restaurant and get FP's for the group, but if you are not in the very front of the line, be prepared to wait a good 20-30 minutes just to get a FP.
If it were me, and TSM is that important, I would cancel this ADR or try for the 8am seating (or after 10 am).