I bought tickets for 11am and have the premium plus seats, will I still be served from the menu? Should I change the time for my movie to get full experience?

well the time is fine and u will be serve from the menu

The menu only changes for the tuck room. The theater menu is available all day until the kitchen is closed for the night

I'm not 100% sure, but I think you should be fine. The point is to be served, so im positive the menu and drinks are all day. Ive haven't been there in the morning, but I have in the afternoon.