It is a HUGE stadium- but it does fill up especially since they have limited the showings. If you go directly there after you eat, you should be able to get in line and make it to the show. The line itself will not fill the stadium. But, I would not show up 15-20 minutes before either. I think your dates will be a little lower crowds than peak times.
It is a fantastic show! You will really enjoy it.
THis probably belongs in my TR but- we went Sept 3rd?- they had added another show that night. Cms were advising people to go to the second show because it would not fill up. We had already planned for the second show and as we walked by- the first was full- about 1/2 hour prior to start.
We went to the second show 1 hour early and the line looked CRAZY! We got in and got good seats but the second show was FULL by the time it started. There did not appear to be a bit of room in the stadium.
So much for not filling up LOL!